Davinciite

A valid IMA mineral species

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Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

Davinciite, etc.

Rasvumchorr Mt, Murmansk Oblast, Russia

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About DavinciiteHide

Leonardo da Vinci

Formula:

Na₁₂K₃Ca₆Fe²⁺₃Zr₃(Si₂₆O₇₃OH)Cl₂

Colour:

Dark lavender

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.82

Crystal System:

Trigonal

Member of:

Eudialyte Group

Name:

Named after the famous artist Leonardo da Vinci (15 April 1452, possibly Anchiano, Vinci, Florentine Republic – 2 May 1519, Clos Lucé, Amboise, France). Davinciite's geometry is pseudocentrosymmetrical, deviating from the perfect model of structure with a symmetry centre. This was compared to the untypical geometry of da Vinci's art.

Type Locality:

ⓘ Rasvumchorr Mt, Murmansk Oblast, Russia

K,Na-ordered member. Chemically similar to rastsvetaevite - the second mineral with Na-K-Ca-Fe-Zr-Si-Cl combination, which is intimately associated with davinciite.

Unique IdentifiersHide

Mindat ID:

42815

Long-form identifier:

mindat:1:1:42815:0

IMA Classification of DavinciiteHide

IMA status:

Approved

IMA Formula:

Na₁₂K₃Ca₆Fe²⁺₃Zr⁴⁺₃(Si₂₆O₇₃OH)Cl₂

Approval year:

2011

Classification of DavinciiteHide

Strunz-mindat (2026):

9.CO.10

9 : SILICATES (Germanates)
C : Cyclosilicates
O : [Si₉O₂₇]₁₈- 9-membered rings

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Dvc	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of DavinciiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Dark lavender

Streak:

White

Hardness:

5 on Mohs scale

Tenacity:

Brittle

Cleavage:

None Observed

Parting:

None

Fracture:

Conchoidal

Density:

2.82(2) g/cm³ (Measured) 2.848 g/cm³ (Calculated)

Optical Data of DavinciiteHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.603(2) n_ε = 1.605(2)

Max. Birefringence:

δ = 0.002
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Moderate (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized uniaxial interference figure - the conoscopic (convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis centred and vertical. The coloured rings are isochromatics, computed with the same physics as the Michel-Lévy bar above; the dark cross is the isogyre.

For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.

Thickness: 30 µm

Pleochroism:

Non-pleochroic

Chemistry of DavinciiteHide

Mindat Formula:

Na₁₂K₃Ca₆Fe²⁺₃Zr₃(Si₂₆O₇₃OH)Cl₂

Element Weights:

Element	% weight
O	38.680 %
Si	23.856 %
Na	9.013 %
Zr	8.941 %
Ca	7.856 %
Fe	5.473 %
K	3.832 %
Cl	2.317 %
H	0.033 %

Calculated from ideal end-member formula.

Elements listed:

Ca, Cl, Fe, H, K, Na, O, Si, Zr - search for minerals with similar chemistry

Common Impurities:

Sr,Mn,Ti,H₂O,(Hf,Ba,Nb,Al)

Crystallography of DavinciiteHide

Crystal System:

Trigonal

Class (H-M):

3m - Ditrigonal Pyramidal

Space Group:

R3m

Cell Parameters:

a = 14.2956(2) Å, c = 30.0228(5) Å

Ratio:

a:c = 1 : 2.1

Unit Cell V:

5,313.57 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0019916	Davinciite	Rastsvetaeva R K, Rozenberg K A, Khomyakov A P (2009) Crystal structure of high-silica K,Na-ordered acentric eudialyte analogue Doklady Chemistry 424 11-14		2009	Khibiny alkaline massif, Russia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Davinciite'
loop_
_publ_author_name
'Rastsvetaeva R K'
'Rozenberg K A'
'Khomyakov A P'
_journal_name_full 'Doklady Chemistry'
_journal_volume 424 
_journal_year 2009
_journal_page_first 11
_journal_page_last 14
_publ_section_title
;
 Crystal structure of high-silica K,Na-ordered acentric eudialyte analogue
;
_database_code_amcsd 0019916
_chemical_compound_source 'Khibiny alkaline massif, Russia'
_chemical_formula_sum '(Zr2.79 Hf.03 Ti.15 Nb.03) Ca6 Si26 O74.389 Fe2.25 Mn.15 Na12.945 K2.295 Sr.3 Ba.03 Cl1.62 H1.662'
_cell_length_a 14.2956
_cell_length_b 14.2956
_cell_length_c 30.0228
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 5313.572
_exptl_crystal_density_diffrn      2.851
_symmetry_space_group_name_H-M 'R 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Zr   0.33280   0.16640   0.16680   0.93000   0.01500
Hf   0.33280   0.16640   0.16680   0.01000   0.01500
Ti   0.33280   0.16640   0.16680   0.05000   0.01500
Nb   0.33280   0.16640   0.16680   0.01000   0.01500
Ca1   0.99990   0.26000   0.99980   1.00000   0.00600
Si1   0.52730   0.26360   0.25100   1.00000   0.00600
Si2   0.99460   0.60280   0.09760   1.00000   0.00600
Si3   0.20930   0.41860   0.07510   1.00000   0.01100
Si4   0.08560   0.54280   0.25780   1.00000   0.01200
Si5   0.05820   0.32900   0.23640   1.00000   0.01000
Si6   0.14140   0.07070   0.08320   1.00000   0.01100
O1   0.47470   0.23730   0.20050   1.00000   0.01800
O2   0.26250   0.02840   0.20630   1.00000   0.01800
O3   0.40190   0.29710   0.12430   1.00000   0.01800
O4   0.60550   0.39450   0.25400   1.00000   0.01700
O5   0.44280   0.22140   0.28790   1.00000   0.00800
O6   0.41210   0.02870   0.04450   1.00000   0.00900
O7   0.10700   0.39130   0.10640   1.00000   0.02000
O8   0.01090   0.50550   0.11730   1.00000   0.01900
O9   0.27370   0.54750   0.06210   1.00000   0.04400
O10   0.17700   0.35400   0.02900   1.00000   0.01400
O11   0.02980   0.51490   0.30380   1.00000   0.01100
O12   0.17660   0.35320   0.21790   1.00000   0.01200
O13   0.04490   0.30050   0.28860   1.00000   0.01400
O14   0.38730   0.43610   0.22390   1.00000   0.02100
O15   0.39310   0.60690   0.25450   1.00000   0.03600
O16   0.06150   0.12310   0.07710   1.00000   0.01100
O17   0.18210   0.09100   0.13280   1.00000   0.01600
O18   0.23360   0.11680   0.04390   1.00000   0.01500
FeM2   0.49870   0.50120   0.00030   0.75000   0.01100
MnM2   0.49870   0.50120   0.00030   0.05000   0.01100
NaM2   0.49870   0.50120   0.00030   0.19000   0.01100
Si3a   0.33333   0.66667   0.24730   1.00000   0.01200
Si4a   0.33333   0.66667   0.04850   1.00000   0.02600
NaA1   0.10830   0.21650   0.15420   1.00000   0.03600
NaA2   0.58120   0.41880   0.16500   1.00000   0.03300
KA3a   0.24040   0.48080  -0.04640   0.53000   0.01300
NaA3b   0.23280   0.11640   0.27690   0.23500   0.02400
KA3b   0.23280   0.11640   0.27690   0.23500   0.02400
NaA4a   0.46140   0.23070   0.04990   0.89000   0.01800
SrA4a   0.46140   0.23070   0.04990   0.04000   0.01800
SrA4b   0.49320   0.24660   0.04450   0.06000   0.01000
BaA4b   0.49320   0.24660   0.04450   0.01000   0.01000
Na5a   0.25480   0.50960   0.17430   0.58000   0.08200
Na5b   0.41930   0.58070   0.16380   0.42000   0.05600
Cl1   0.00000   0.00000   0.24240   0.54000   0.03600
Cl2   0.66667   0.33333   0.10260   0.70000   0.03600
Wat11   0.00000   0.00000   0.21940   0.23000   0.03900
Cl11   0.00000   0.00000   0.21940   0.23000   0.03900
Cl21   0.66667   0.33333   0.04900   0.15000   0.02900
Wat21   0.66667   0.33333   0.04900   0.15000   0.02900
O-H1   0.41000   0.59000   0.00400   0.00200   0.04500
O1   0.41000   0.59000   0.00400   0.00300   0.04500
O-H2   0.58200   0.41800  -0.00200   0.00200   0.02300
O2   0.58200   0.41800  -0.00200   0.00300   0.02300
O-H3   0.33333   0.66667   0.14000   0.25600   0.02000
O3   0.33333   0.66667   0.14000   0.31300   0.02000
O-H4   0.33333   0.66667   0.19670   0.22500   0.01300
O4   0.33333   0.66667   0.19670   0.27500   0.01300
O-H5   0.33333   0.66667   0.99500   0.18400   0.05700
O5   0.33333   0.66667   0.99500   0.22600   0.05700
O-H6   0.33333   0.66667   0.33000   0.22500   0.07600
O6   0.33333   0.66667   0.33000   0.27500   0.07600

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
6.415 Å	(54)
5.720 Å	(36)
4.309 Å	(66)
3.207 Å	(63)
3.162 Å	(43)
2.981 Å	(100)
2.860 Å	(96)
2.595 Å	(37)

Locality:

Rasvumchorr Mt, Murmansk Oblast, Russia

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of DavinciiteHide

Type Locality:

ⓘ Rasvumchorr Mt, Murmansk Oblast, Russia

General Appearance of Type Material:

relic inclusions in rastsvetaevite, clearly discerning in colouration. grains (0.3–2 mm)

Place of Conservation of Type Material:

Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, catalogue number 3846

Geological Setting of Type Material:

hyperagpaite pegmatite

Associated Minerals at Type Locality:

Rastsvetaevite

Synonyms of DavinciiteHide

IMA2011-019

UM2009-26-SiO:CaClFeHKNaZr

Other Language Names for DavinciiteHide

Dutch:Davinciiet

German:Davinciit

Relationship of Davinciite to other SpeciesHide

Member of:

Eudialyte Group

Other Members of Eudialyte Group:

Alluaivite	Na₁₉(Ca,Mn)₆(Ti,Nb)₃Si₂₆O₇₄Cl · 2H₂O	Trig. 3m(32/m) : R3m
Amableite-(Ce)	Na₁₅[(Ce_1.5Na_1.5)Mn₃]Mn₂Zr₃◻Si[Si₂₄O₆₉(OH)₃](OH)₂ · H₂O	Trig. 3 : R3
Andrianovite	Na₁₂(K,Sr,Ce)₃Ca₆Mn₃Zr₃Nb(Si₂₅O₇₃)(O,H₂O,OH)₅	Trig. 3m : R3m
Aqualite	(H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl	Trig. 3 : R3
Carbokentbrooksite	(Na₃Na₃Na₃Na₃Na₃)Ca₆(^VMn²⁺₃)Zr₃[Si₃O₉]₂[Si₉O₂₇SiO][Si₉O₂₇Nb(OH)₃](CO₃)(H₂O)	Trig. 3m : R3m
Dualite	Na₃₀(Ca,Na,Ce,Sr)₁₂(Na,Mn,Fe,Ti)₆Zr₃Ti₃Mn[Si₅₁O₁₄₄](OH,H₂O,Cl)₉	Trig. 3m : R3m
Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	Trig. 3m(32/m) : R3m
Feklichevite	Na₁₁Ca₉(Fe³⁺,Fe²⁺)₂Zr₃Nb[Si₂₅O₇₃](OH,H₂O,Cl,O)₅	Trig. 3m : R3m
Fengchengite	Na₁₂◻₃(Ca,Sr)₆Fe³⁺₃ Zr₃Si(Si₂₅O₇₃)(H₂O,OH)₃(OH,Cl)₂	Trig. 3m(32/m) : R3m
Ferrokentbrooksite	Na₁₅Ca₆(Fe,Mn)₃Zr₃NbSi₂₅O₇₃(O,OH,H₂O)₃Cl₂	Trig. 3m : R3m
Georgbarsanovite	Na₁₂(Mn,Sr,REE)₃Ca₆Fe²⁺₃Zr₃NbSi₂₅O₇₆Cl₂ · H₂O	Trig. 3m : R3m
Golyshevite	Na₁₀Ca₃Ca₆Zr₃Fe₂SiNb(Si₃O₉)₂(Si₉O₂₇)₂CO₃(OH)₃ · H₂O	Trig. 3m : R3m
'Hydrorastsvetaevite'	(Na₁₁(H₃O)₁₁K₆(H₂O)_1.5Sr)Ca₁₂Fe₃Na₂MnZr₆Si₅₂O₁₄₄(OH)_4.5Cl_3.5	Trig. 3m : R3m
Ikranite	(Na,H₃O)₁₅(Ca,Mn²⁺)₆Fe³⁺₂Zr₃[H_0-3Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl · 2-3H₂O	Trig. 3m : R3m
Ilyukhinite	(H₃O,Na)₁₄Ca₆Mn₂Zr₃Si₂₆O₇₂(OH)₂ · 3H₂O	Trig. 3m : R3m
Johnsenite-(Ce)	Na₁₂(Ce₂Ca)Ca₆Mn₃Zr₃[Si₃O₉]₂[Si₉O₂₇SiO][Si₉O₂₇W(O)₃](CO₃)(OH,Cl)₂	Trig. 3m : R3m
Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O	Trig. 3m : R3m
Khomyakovite	Na₁₂Sr₃Ca₆Fe₃Zr₃W[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂	Trig. 3m : R3m
Labyrinthite	(Na,K,Sr)₃₅Ca₁₂Fe₃Zr₆TiSi₅₁O₁₄₄(O,OH,H₂O)₉Cl₃	Trig. 3 : R3
Manganoeudialyte	Na₁₄Ca₆Mn₃Zr₃[Si₂₆O₇₂(OH)₂](H₂O,Cl,O,OH)₆	Trig. 3m : R3m
Manganokhomyakovite	Na₁₂Sr₃Ca₆Mn₃Zr₃W[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂	Trig. 3m : R3m
Mogovidite	Na₉(Ca,Na)₁₂Fe₂Zr₃Si₂₅O₇₂(CO₃) (OH)₄	Trig. 3m : R3m
Odikhinchaite	Na₉Sr₃[(H₂O)₂Na]Ca₆Mn₃Zr₃NbSi (Si₂₄O₇₂)O(OH)₃(CO₃) · H₂O	Trig. 3m : R3m
Oneillite	Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂	Trig. 3 : R3
Raslakite	Na₁₅Ca₃Fe²⁺₃(Na,Zr)₃Zr₃(Si,Nb)[(Si₃O₉)₂(Si₉O₂₇)₂SiO](OH,H₂O)₃(Cl,OH)	Trig. 3 : R3
Rastsvetaevite	Na₂₇K₈Ca₁₂Fe₃Zr₆Si₅₂O₁₄₄(O,OH,H₂O)₆Cl₂	Trig. 3m : R3m
Selsurtite	(H₃O)₁₂Na₃(Ca₃Mn₃)(Na₂Fe)Zr₃◻{Si(Si₃O₉)₂(Si₉O₂₇)Si₉O₂₄(OH)₃}(OH)Cl(H₂O)	Trig. 3 : R3
Sergevanite	Na₁₅(Ca₃Mn₃)(Na₂Fe)Zr₃Si₂₆O₇₂(OH)₃ · H₂O	Trig. 3 : R3
Siudaite	Na₈(Mn²⁺₂Na)Ca₆(Fe³⁺,Mn²⁺)₃Zr₃NbSi₂₄(Si,◻,Ti)O₇₄(OH)₂Cl · 5H₂O	Trig. 3m : R3m
Taseqite	Na₁₂Sr₃Ca₆Fe₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl₂(O,OH,H₂O)₃	Trig. 3m : R3m
'UM1971-22-SiO:CaClFeHMgMnNaNbZr'	Na₁₂Ca₅(Ce,La,Y,Ca)Zr₃(Zr,Nb)(Fe,Mn)₃[Si₉O_24-26(OH)_1-3]₂[Si₃O₉]₂Cl	Trig. 3m : R3m
'UM1990-78-SiO:CaClFeHKNaZr'	(H₃O)₇(Na,K)₅(Ca,Sr,Mn)₆Zr₃[Si₃O₇(O,OH)₂]₂[Si₉O₂₃(O,OH)₄]2[SiNaFe(Zr,Ti,Al,Nb)◻]Cl_1.5(O,OH)	Trig. 3m : R3m
'UM1990-79-SiO:CaClFeHMnNaNbREEZr'	Na₁₄Ca₅(Mg,Ca,Mn)Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(Si,Nb,Al,Zr)₂(Fe,Zr)₃(Mn,Na,Ce,La,Y)(Na,H₂O,K,Sr)(OH)_4-5(OH,Cl)
'UM1990-80-SiO:CaFeHMnNaNbREEZr'	Na₁₄Ca₄(Mn,Ca)₂Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(Si,Nb,Al,Zr)₂(Fe,Mn,Al,Ti)₃(Na,Ce,La,Y,Mn)(Na,H₂O,K,Sr)(OH)_7-8
'UM1998-21-SiO:CaCeClHMnNaZr'	Na₁₆Ca₆(Mn,Ce)₃Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(OH,Cl)₄ · nH₂O	Trig. 3m : R3m
'UM1999-36-SiO:CaCeHMnNaNbSrZr'	Na₁₇(Ca,Ce,Sr)₂Mn₃(Zr,Nb)₄Si₂₅O₇₃(O,OH,F,Cl)₅	Trig. 3 : R3
'UM2000-66-SiO:CaClFeHMnNaNbSrZr'	Na₁₂(Ca,Mn)₆(Sr,Na,K)₃(Fe,Mn)₃(Zr,Nb)₄Si₂₅O₆₆(OH,Cl)₁₁	Trig. 3m : R3m
'UM2000-67-SiO:CaClFeHMnNaNbZr'	Zr4(Ca,Na,Mn,Fe)6(Fe,Mn,Ti)3Na17Si25O75(Al,Nb,Ti)Cl(OH)4.H2O	Trig. 3m : R3m
'UM2000-80- SiO:CaCeFFeHMnNaNbTiZr'	Na₁₄(Na,Ca,Ce)(Mn,Ca,Ce)[Fe_1.55(Zr,Na)(◻,Ti,Nb)]Zr₃(Si,Al)(Si₃O₉)₂(Si₉O₂₇)₂(OH,O)₄(F ,Cl) · H₂O
'UM2003-39-SiO:CaClFeHHfNaNbSrTaTiZr'	Na₁₂(Na,K,Mn,Sr)₂Ca₅(Ca,Mn)(Zr,Hf)₃(Fe,◻,Ta)₃(Si,Nb,W)(Si,Al,Ti)Si₂₄O₇₂(OH,O)_3.5Cl · 1.2H₂O	Trig. 3m : R3m
'UM2004-51-SiO:CaClFFeHNaNbTi'	Na₁₆Ca₆(Fe,Mn)₃Zr₃(Ti,Nb)Si₂₆O₇₂FCl_0.5 · nH₂O	Trig. 3m : R3m
'UM2005-36-SiO:AlBaCaClFeHKMnNaREESrTiZr'	[(H₃O)_9.32Na_5.86K_0.53Ba_0.36Sr_0.15][Ca_5.22Sr_0.49Ce_0.16Mn_0.13][Zr_2.42Ti_0.54Hf_0.02Nb_0.02][Na_1.48(Fe
'UM2005-37-SiO:AlBaCaClFeHKMnNaREESrTiZr'	[(H₃O)_9.26Na_2.12K_1.20Ba_0.46Sr_0.48][Ca_5.76Ce_0.24][Zr2_.92Ti_0.08][Na_0.62(Fe_0.23Mn_0.11(H₂O)_0.34)][Si
'UM2005-38-SiO:AlBaCaClFeHKMnNaNbREESrTiYZr'	[(H₃O)_10.85Na_3.3Sr_0.48K_0.21Ce_0.2Y_0.1Ba_0.04][Ca_2.10Na_0.9][Ca_2.4Na_0.3Mn_0.3][Zr_2.97Hf_0.03][Fe_1.32
'UM2005-39-SiO:AlBaCaClFeHKMnNaNbREESrTiYZr'	[(H₃O)_11.61Na_3.0Sr_0.63Ce_0.22K_0.2Y_0.05Ba_0.03][Ca_2.25Na_0.75][Ca_2.4Mn0_.6][Zr_2.98Hf_0.02][Fe³⁺_0.66
'UM2005-40-SiO:AlCaClFeHKMnNaNbREESrTiYZr'	[(H₃O)_5.58Na5_.25Ce_0.63K_0.3Y_0.19Sr_0.05][Ca₃][Ca_1.71Mn_1.29][Zr_2.96Hf_0.04][(Fe³⁺_1.0Fe²⁺_0.35)(Fe³⁺
'UM2005-41-SiO:BaCaFeHKMgMnNaNbREESrTiYZr'	[(H₃O)_8.53Na_3.51Sr_0.55Ce_0.45Y_0.3Ba_0.15K_0.06][Ca_2.25Sr_0.45Na_0.3][Ca_2.4Mn_0.6][Zr_2.97Hf_0.03][(Mn_0.
'UM2006-17-SiO:CaClFFeHMnNaZr'	Na₁₅(Ca₃Mn₃)Zr₃(Fe,Zr)₃SiSi(Si₃O₉)₂(Si₉O₂₇)₂O₂(OH,F,Cl)₃ · 2H₂O
'UM2006-18-SiO:CaClFFeHMnNaZr'	Na₁₅Ca₃(Mn,Fe)₃Zr₃(Zr,Na)₃(Si,Nb)(S,Ti,Si)(Si₃O₉)₂(Si₉O₂₇)₂(O,OH)₅(Cl,F,H₂O)	Trig. 3 : R3
'UM2006-28-SiO:CaHMnNaZr'	Na₃₃Ca₁₂Zr₆Mn₃(Mn,Nb,Ti)₂Si₅₀O₁₃₂(O,OH)₁₂(OH,H₂O,Cl)₁₀
'UM2010-06-SiO:CaFeHMnNaNbREETiZr'	[Na,(H₃O)]₁₅(Ca₃Mn₃)Na₃Zr₃(Si,Ti)[Si₂₅O₇₂OH](OH)₂ · 2H₂O
'Unnamed (Hydrated Hydrous Na-Ca-Mn-Fe-Zr-Ti Silicate Chloride)'	Na₃₇Ca₁₀Mn₂FeZr₆Si₅₀(Ti,Nb)₂O₁₄₄(OH)₅Cl₃ · H₂O	Trig. 3m : R3m
'Unnamed (Hypermanganese Eudialyte)'	Na₂₉Ca₁₂Zr₆[Si₄₈O₁₃₂(O,OH)₁₂]{[Na]₄[Si]₂}{[Mn]₃[Mn,Nb,Ti]₂}(OH,H₂O,Cl)₁₀	Trig. 3m(32/m) : R3m
'Unnamed (M4-vacant Sodium Calcium Manganese Zirconium Iron Silicon Hydroxyl Hydrated Eudialyte Group Species)'	Na₁₃(Ca₃Mn₃)Zr₃(Fe, Mn)₃(◻)(Si)[Si₃O₉]₂[Si₉O₂₇]₂(O,OH,Cl)₃ · 2H₂O
Voronkovite	Na₁₅(Na,Ca,Ce)₃(Mn,Ca)₃Fe₃Zr₃Si₂₆O₇₂(OH,O)₄Cl · H₂O	Trig. 3 : R3
Zirsilite-(Ce)	Na_11-12(Ce,Na)₃Ca₆Mn₃Zr₃Nb(Si₁₉O₅₅)(Si₃O₉)₂(CO₃)(OH)₃ · H₂O	Trig. 3m : R3m

Common AssociatesHide

Associations Based on Photo Data:

2 photos of Davinciite associated with Aegirine	NaFe³⁺Si₂O₆
1 photo of Davinciite associated with Rastsvetaevite	Na₂₇K₈Ca₁₂Fe₃Zr₆Si₅₂O₁₄₄(O,OH,H₂O)₆Cl₂

Related Minerals - Strunz-mindat Grouping Hide

9.CO.	Odikhinchaite	Na₉Sr₃[(H₂O)₂Na]Ca₆Mn₃Zr₃NbSi (Si₂₄O₇₂)O(OH)₃(CO₃) · H₂O	Trig. 3m : R3m
9.CO.10	Manganokhomyakovite	Na₁₂Sr₃Ca₆Mn₃Zr₃W[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂	Trig. 3m : R3m
9.CO.10	Sergevanite	Na₁₅(Ca₃Mn₃)(Na₂Fe)Zr₃Si₂₆O₇₂(OH)₃ · H₂O	Trig. 3 : R3
9.CO.10	Feklichevite	Na₁₁Ca₉(Fe³⁺,Fe²⁺)₂Zr₃Nb[Si₂₅O₇₃](OH,H₂O,Cl,O)₅	Trig. 3m : R3m
9.CO.10	'UM1990-78-SiO:CaClFeHKNaZr'	(H₃O)₇(Na,K)₅(Ca,Sr,Mn)₆Zr₃[Si₃O₇(O,OH)₂]₂[Si₉O₂₃(O,OH)₄]2[SiNaFe(Zr,Ti,Al,Nb)◻]Cl_1.5(O,OH)	Trig. 3m : R3m
9.CO.10	Golyshevite	Na₁₀Ca₃Ca₆Zr₃Fe₂SiNb(Si₃O₉)₂(Si₉O₂₇)₂CO₃(OH)₃ · H₂O	Trig. 3m : R3m
9.CO.10	Labyrinthite	(Na,K,Sr)₃₅Ca₁₂Fe₃Zr₆TiSi₅₁O₁₄₄(O,OH,H₂O)₉Cl₃	Trig. 3 : R3
9.CO.10	'UM1990-79-SiO:CaClFeHMnNaNbREEZr'	Na₁₄Ca₅(Mg,Ca,Mn)Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(Si,Nb,Al,Zr)₂(Fe,Zr)₃(Mn,Na,Ce,La,Y)(Na,H₂O,K,Sr)(OH)_4-5(OH,Cl)
9.CO.10	Ilyukhinite	(H₃O,Na)₁₄Ca₆Mn₂Zr₃Si₂₆O₇₂(OH)₂ · 3H₂O	Trig. 3m : R3m
9.CO.10	Oneillite	Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂	Trig. 3 : R3
9.CO.10	'UM1971-22-SiO:CaClFeHMgMnNaNbZr'	Na₁₂Ca₅(Ce,La,Y,Ca)Zr₃(Zr,Nb)(Fe,Mn)₃[Si₉O_24-26(OH)_1-3]₂[Si₃O₉]₂Cl	Trig. 3m : R3m
9.CO.10	'UM1998-21-SiO:CaCeClHMnNaZr'	Na₁₆Ca₆(Mn,Ce)₃Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(OH,Cl)₄ · nH₂O	Trig. 3m : R3m
9.CO.10	Selsurtite	(H₃O)₁₂Na₃(Ca₃Mn₃)(Na₂Fe)Zr₃◻{Si(Si₃O₉)₂(Si₉O₂₇)Si₉O₂₄(OH)₃}(OH)Cl(H₂O)	Trig. 3 : R3
9.CO.10	Carbokentbrooksite	(Na₃Na₃Na₃Na₃Na₃)Ca₆(^VMn²⁺₃)Zr₃[Si₃O₉]₂[Si₉O₂₇SiO][Si₉O₂₇Nb(OH)₃](CO₃)(H₂O)	Trig. 3m : R3m
9.CO.10	Zirsilite-(Ce)	Na_11-12(Ce,Na)₃Ca₆Mn₃Zr₃Nb(Si₁₉O₅₅)(Si₃O₉)₂(CO₃)(OH)₃ · H₂O	Trig. 3m : R3m
9.CO.10	Taseqite	Na₁₂Sr₃Ca₆Fe₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl₂(O,OH,H₂O)₃	Trig. 3m : R3m
9.CO.10	Ikranite	(Na,H₃O)₁₅(Ca,Mn²⁺)₆Fe³⁺₂Zr₃[H_0-3Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl · 2-3H₂O	Trig. 3m : R3m
9.CO.10	Raslakite	Na₁₅Ca₃Fe²⁺₃(Na,Zr)₃Zr₃(Si,Nb)[(Si₃O₉)₂(Si₉O₂₇)₂SiO](OH,H₂O)₃(Cl,OH)	Trig. 3 : R3
9.CO.10	Johnsenite-(Ce)	Na₁₂(Ce₂Ca)Ca₆Mn₃Zr₃[Si₃O₉]₂[Si₉O₂₇SiO][Si₉O₂₇W(O)₃](CO₃)(OH,Cl)₂	Trig. 3m : R3m
9.CO.10	'UM2004-51-SiO:CaClFFeHNaNbTi'	Na₁₆Ca₆(Fe,Mn)₃Zr₃(Ti,Nb)Si₂₆O₇₂FCl_0.5 · nH₂O	Trig. 3m : R3m
9.CO.10	'UM1990-80-SiO:CaFeHMnNaNbREEZr'	Na₁₄Ca₄(Mn,Ca)₂Zr₃(Si₃O₉)₂(Si₉O₂₇)₂(Si,Nb,Al,Zr)₂(Fe,Mn,Al,Ti)₃(Na,Ce,La,Y,Mn)(Na,H₂O,K,Sr)(OH)_7-8
9.CO.10	'UM2003-39-SiO:CaClFeHHfNaNbSrTaTiZr'	Na₁₂(Na,K,Mn,Sr)₂Ca₅(Ca,Mn)(Zr,Hf)₃(Fe,◻,Ta)₃(Si,Nb,W)(Si,Al,Ti)Si₂₄O₇₂(OH,O)_3.5Cl · 1.2H₂O	Trig. 3m : R3m
9.CO.10	'UM2006-17-SiO:CaClFFeHMnNaZr'	Na₁₅(Ca₃Mn₃)Zr₃(Fe,Zr)₃SiSi(Si₃O₉)₂(Si₉O₂₇)₂O₂(OH,F,Cl)₃ · 2H₂O
9.CO.10	'UM2006-18-SiO:CaClFFeHMnNaZr'	Na₁₅Ca₃(Mn,Fe)₃Zr₃(Zr,Na)₃(Si,Nb)(S,Ti,Si)(Si₃O₉)₂(Si₉O₂₇)₂(O,OH)₅(Cl,F,H₂O)	Trig. 3 : R3
9.CO.10	Mogovidite	Na₉(Ca,Na)₁₂Fe₂Zr₃Si₂₅O₇₂(CO₃) (OH)₄	Trig. 3m : R3m
9.CO.10	'UM2006-28-SiO:CaHMnNaZr'	Na₃₃Ca₁₂Zr₆Mn₃(Mn,Nb,Ti)₂Si₅₀O₁₃₂(O,OH)₁₂(OH,H₂O,Cl)₁₀
9.CO.10	'Unnamed (Hypermanganese Eudialyte)'	Na₂₉Ca₁₂Zr₆[Si₄₈O₁₃₂(O,OH)₁₂]{[Na]₄[Si]₂}{[Mn]₃[Mn,Nb,Ti]₂}(OH,H₂O,Cl)₁₀	Trig. 3m(32/m) : R3m
9.CO.10	'Hydrorastsvetaevite'	(Na₁₁(H₃O)₁₁K₆(H₂O)_1.5Sr)Ca₁₂Fe₃Na₂MnZr₆Si₅₂O₁₄₄(OH)_4.5Cl_3.5	Trig. 3m : R3m
9.CO.10	'UM1999-36-SiO:CaCeHMnNaNbSrZr'	Na₁₇(Ca,Ce,Sr)₂Mn₃(Zr,Nb)₄Si₂₅O₇₃(O,OH,F,Cl)₅	Trig. 3 : R3
9.CO.10	'UM2000-66-SiO:CaClFeHMnNaNbSrZr'	Na₁₂(Ca,Mn)₆(Sr,Na,K)₃(Fe,Mn)₃(Zr,Nb)₄Si₂₅O₆₆(OH,Cl)₁₁	Trig. 3m : R3m
9.CO.10	Georgbarsanovite	Na₁₂(Mn,Sr,REE)₃Ca₆Fe²⁺₃Zr₃NbSi₂₅O₇₆Cl₂ · H₂O	Trig. 3m : R3m
9.CO.10	'Unnamed (Hydrated Hydrous Na-Ca-Mn-Fe-Zr-Ti Silicate Chloride)'	Na₃₇Ca₁₀Mn₂FeZr₆Si₅₀(Ti,Nb)₂O₁₄₄(OH)₅Cl₃ · H₂O	Trig. 3m : R3m
9.CO.10	Fengchengite	Na₁₂◻₃(Ca,Sr)₆Fe³⁺₃ Zr₃Si(Si₂₅O₇₃)(H₂O,OH)₃(OH,Cl)₂	Trig. 3m(32/m) : R3m
9.CO.10	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	Trig. 3m(32/m) : R3m
9.CO.10	Alluaivite	Na₁₉(Ca,Mn)₆(Ti,Nb)₃Si₂₆O₇₄Cl · 2H₂O	Trig. 3m(32/m) : R3m
9.CO.10	'UM2010-06-SiO:CaFeHMnNaNbREETiZr'	[Na,(H₃O)]₁₅(Ca₃Mn₃)Na₃Zr₃(Si,Ti)[Si₂₅O₇₂OH](OH)₂ · 2H₂O
9.CO.10	Aqualite	(H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl	Trig. 3 : R3
9.CO.10	Andrianovite	Na₁₂(K,Sr,Ce)₃Ca₆Mn₃Zr₃Nb(Si₂₅O₇₃)(O,H₂O,OH)₅	Trig. 3m : R3m
9.CO.10	Dualite	Na₃₀(Ca,Na,Ce,Sr)₁₂(Na,Mn,Fe,Ti)₆Zr₃Ti₃Mn[Si₅₁O₁₄₄](OH,H₂O,Cl)₉	Trig. 3m : R3m
9.CO.10	Ferrokentbrooksite	Na₁₅Ca₆(Fe,Mn)₃Zr₃NbSi₂₅O₇₃(O,OH,H₂O)₃Cl₂	Trig. 3m : R3m
9.CO.10	Siudaite	Na₈(Mn²⁺₂Na)Ca₆(Fe³⁺,Mn²⁺)₃Zr₃NbSi₂₄(Si,◻,Ti)O₇₄(OH)₂Cl · 5H₂O	Trig. 3m : R3m
9.CO.10	Voronkovite	Na₁₅(Na,Ca,Ce)₃(Mn,Ca)₃Fe₃Zr₃Si₂₆O₇₂(OH,O)₄Cl · H₂O	Trig. 3 : R3
9.CO.10	Manganoeudialyte	Na₁₄Ca₆Mn₃Zr₃[Si₂₆O₇₂(OH)₂](H₂O,Cl,O,OH)₆	Trig. 3m : R3m
9.CO.10	Rastsvetaevite	Na₂₇K₈Ca₁₂Fe₃Zr₆Si₅₂O₁₄₄(O,OH,H₂O)₆Cl₂	Trig. 3m : R3m
9.CO.10	Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O	Trig. 3m : R3m
9.CO.10	Amableite-(Ce)	Na₁₅[(Ce_1.5Na_1.5)Mn₃]Mn₂Zr₃◻Si[Si₂₄O₆₉(OH)₃](OH)₂ · H₂O	Trig. 3 : R3
9.CO.10	Khomyakovite	Na₁₂Sr₃Ca₆Fe₃Zr₃W[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂	Trig. 3m : R3m

RadioactivityHide

Radioactivity:

Element	% Content	Activity (Bq/kg)	Radiation Type
Uranium (U)	0.0000%	0	α, β, γ
Thorium (Th)	0.0000%	0	α, β, γ
Potassium (K)	3.8320%	1,188	β, γ

For comparison:

Banana: ~15 Bq per fruit
Granite: 1,000–3,000 Bq/kg
EU exemption limit: 10,000 Bq/kg

Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.

Interactive Simulator:

Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!

Mass of radioactive mineral:

Shielding material:

Activity: –

Distance	Dose rate	Risk
1 cm
10 cm
1 m

The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μ_shield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((A_U × Γ_U) + (A_Th × Γ_Th) + (A_K × Γ_K)) / r² × μ_shield

Fluorescence of DavinciiteHide

In UV light:

None

Other InformationHide

Notes:

slowly dissolves and gelatinizes in the 50% solutions of HCl and HNO3

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for DavinciiteHide

mindat.org URL:

https://www.mindat.org/min-42815.html
Please feel free to link to this page.

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for DavinciiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011, CNMNC Newsletter No. 10. Mineralogical Magazine, 75 (5) 2549-2561 doi:10.1180/minmag.2011.075.5.2549

Khomyakov, A. P., Nechelyustov, G. N., Rastsvetaeva, R. K., Rozenberg, K. A. (2013) Davinciite, Na12K3Ca6Fe 3 2+ Zr3(Si26O73OH)Cl2, a New K,Na-Ordered mineral of the eudialyte group from the Khibiny Alkaline Pluton, Kola Peninsula, Russia. Geology of Ore Deposits, 55 (7) 532-540 doi:10.1134/s1075701513070076

(2013) Davinciite. Handbook of Mineralogy. Mineralogical Society of America

Localities for DavinciiteHide

Showing 1 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

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Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Russia (TL)

Murmansk Oblast

ⓘ Rasvumchorr Mt (TL)

Williams et al. (2011) +2 other references

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Davinciite

About DavinciiteHide

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Chemistry of DavinciiteHide

Crystallography of DavinciiteHide

Crystal StructureHide

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Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

RadioactivityHide

Fluorescence of DavinciiteHide

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Localities for DavinciiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide