Gravegliaite

A valid IMA mineral species

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Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

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About GravegliaiteHide

Gambatesa mine

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Formula:

Mn²⁺SO₃ · 3H₂O

Colour:

Colorless

Lustre:

Vitreous

Specific Gravity:

2.39 (Calculated)

Crystal System:

Orthorhombic

Name:

Named for the Graveglia Valley, Italy, where the type locality is found.

Type Locality:

ⓘ Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

Dimorph of:

Mikenewite

Stoichiometry similar to that of albertiniite, an iron sulfite trihydrate, but different structure.

Unique IdentifiersHide

Mindat ID:

1742

Long-form identifier:

mindat:1:1:1742:4

IMA Classification of GravegliaiteHide

IMA status:

Approved

IMA Formula:

Mn²⁺S⁴⁺O₃·3H₂O

Approval year:

1990

First published:

1991

Type description reference:

Basso, R.; Lucchetti, G.; Palenzona, A. (1991) Gravegliaite, MnSO₃ · 3 H₂O, a new mineral from Val Graveglia (Northern Apennines, Italy). Zeitschrift für Kristallographie, 197 (1-2). 97-106 doi:10.1524/zkri.1991.197.1-2.97

Classification of GravegliaiteHide

Strunz-mindat (2026):

4.JE.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
E : Sulfites

Dana 7th ed.:

34.2.4.2

Dana 8th ed.:

34.2.5.2

34 : SELENITES, TELLURITES AND SULFITES
2 : A(XO₃)·xH₂O

Hey's CIM Ref.:

27.1.3

27 : Sulphites, Chromates, Molybdates and Tungstates
1 : Sulphites

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
Gvg	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 GravegliaiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Colorless

Streak:

White

Cleavage:

Distinct/Good
Parallel to [010].

Fracture:

None observed

Density:

2.39 g/cm³ (Calculated)

Optical Data of GravegliaiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.590(2) n_β = 1.596(2) n_γ = 1.636(2)

2V:

Measured: 41° (3), Calculated: 43°

Max. Birefringence:

δ = 0.046
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:

High (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 biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.

Thickness: 30 µm

Stage rotation: 0°

Dispersion:

r > v distinct

Optical Extinction:

Z = b.

Pleochroism:

Non-pleochroic

Chemistry of GravegliaiteHide

Mindat Formula:

Mn²⁺SO₃ · 3H₂O

Element Weights:

Element	% weight
O	50.779 %
Mn	29.061 %
S	16.961 %
H	3.199 %

Calculated from ideal end-member formula.

Elements listed:

H, Mn, O, S - search for minerals with similar chemistry

Crystallography of GravegliaiteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm(2/m2/m2/m) - Dipyramidal

Space Group:

Pnma

Setting:

Pnma

Cell Parameters:

a = 9.763(1) Å, b = 5.635(1) Å, c = 9.558(1) Å

Ratio:

a:b:c = 1.733 : 1 : 1.696

Unit Cell V:

525.83 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)
0011006	Gravegliaite	Basso R, Lucchetti G, Palenzona A (1991) Gravegliaite, MnSO33H2O, a new mineral from Val Graveglia (Northern Apennines, Italy)* Zeitschrift fur Kristallographie 197 97-106		1991	Gambatesa mine, Val Graveglia, Northern Apennines, Italy	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Gravegliaite'
loop_
_publ_author_name
'Basso R'
'Lucchetti G'
'Palenzona A'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 197 
_journal_year 1991
_journal_page_first 97
_journal_page_last 106
_publ_section_title
;
 Gravegliaite, MnSO3*3H2O, a new mineral from Val Graveglia
 (Northern Apennines, Italy)
;
_database_code_amcsd 0011006
_chemical_compound_source 'Gambatesa mine, Val Graveglia, Northern Apennines, Italy'
_chemical_formula_sum 'Mn S O6 H6'
_cell_length_a 9.763
_cell_length_b 5.635
_cell_length_c 9.558
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 525.829
_exptl_crystal_density_diffrn      2.388
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Mn   0.22360   0.25000   0.06220   0.01482
S   0.93440   0.25000   0.90990   0.01279
O1   0.08920   0.25000   0.88240   0.02571
O2   0.11850   0.53480   0.17160   0.02343
O3   0.36860   0.25000   0.23670   0.02888
O4   0.36380   0.50560   0.95070   0.01786
H3A   0.44500   0.25000   0.29400 ?
H3B   0.28400   0.25000   0.30500 ?
H4A   0.35800   0.50500   0.85900 ?
H4B   0.35800   0.64400   0.95000 ?

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
4.33 Å	(Very strong)
3.43 Å	(Very strong)
6.83 Å	(Strong)
2.704 Å	(Medium)
2.666 Å	(Medium)
2.414 Å	(Medium)
1.726 Å	(Medium)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
47e : [Vanadates, chromates, manganates]

Type Occurrence of GravegliaiteHide

Type Locality:

ⓘ Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy

General Appearance of Type Material:

Radial aggregates of prismatic crystals, elongated parallel to [010] and up to 0.5 mm long.

Place of Conservation of Type Material:

Department of Earth Sciences, University of Genoa, Genoa, Ital

Geological Setting of Type Material:

Ophiolite sequence.

Associated Minerals at Type Locality:

Reference:

Synonyms of GravegliaiteHide

IMA1990-020

Other Language Names for GravegliaiteHide

Dutch:Gravegliaiet

German:Gravegliait

Russian:Гравелиаит

Spanish:Gravegliaita

Related Minerals - Strunz-mindat Grouping Hide

4.JE.X	Albertiniite	Fe²⁺(SO₃) · 3H₂O	Mon. 2/m : P2₁/c
4.JE.	Mikenewite	Mn²⁺(S⁴⁺O₃) · 3H₂O	Mon. 2/m : P2₁/c
4.JE.	Vanpeltite	(Mo₂O₅)(S⁴⁺O₃) · 4H₂O	Mon. 2/m : B2/m
4.JE.05	Fleisstalite	FeSO₃ · 3H₂O	Orth. mmm(2/m2/m2/m) : Pnma
4.JE.10	Hannebachite	CaSO₃ · H₂O	Orth. mmm(2/m2/m2/m)
4.JE.15	Orschallite	Ca₃(SO₃)₂(SO₄) · 12H₂O	Trig. 3m(32/m) : R3c
4.JE.20	Scotlandite	PbSO₃	Mon. 2/m : P2₁/m
4.JE.25	Kollerite	(NH₄)₂Fe³⁺(SO₃)₂(OH) · H₂O	Orth. mmm(2/m2/m2/m) : Cmcm

Other InformationHide

Notes:

Insoluble in water and in ethyl alcohol, soluble in strong acids.

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 GravegliaiteHide

mindat.org URL:

https://www.mindat.org/min-1742.html
Please feel free to link to this page.

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External Links:

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Look for Gravegliaite on Mineralien Atlas

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 GravegliaiteHide

Reference List:

Jambor, John L. (1992) New Mineral Names. American Mineralogist, 77 (5-6) 670-675

Mandarino, Joseph A. (1997) New Minerals 1990-1994. The Mineralogical Record Inc., Tuscon, Arizona. 220pp.

(2007) Gravegliaite. Handbook of Mineralogy. Mineralogical Society of America

Localities for GravegliaiteHide

Showing 5 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.


Italy (TL)
Liguria Genoa Ne Reppia ⓘ Gambatesa Mine (TL)	415 (354) +3 other references

Luxembourg
Canton Clervaux Wincrange ⓘ Schimpach	www.mnhn.lu (n.d.) +1 other reference

Spain
Canary Islands Santa Cruz de Tenerife Province Tenerife ⓘ ~~Los Blanquitos~~	Dill et al. (2023)
ⓘ ~~Mount Pelada~~	Dill et al. (2023)

Tanzania
Manyara Region Simanjiro District Lelatema Mountains ⓘ Merelani Hills	Färber (n.d.)

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Gravegliaite

About GravegliaiteHide

Unique IdentifiersHide

IMA Classification of GravegliaiteHide

Classification of GravegliaiteHide

Mineral SymbolsHide

Physical Properties of GravegliaiteHide

Optical Data of GravegliaiteHide

Chemistry of GravegliaiteHide

Crystallography of GravegliaiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of GravegliaiteHide

Synonyms of GravegliaiteHide

Other Language Names for GravegliaiteHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for GravegliaiteHide

References for GravegliaiteHide

Localities for GravegliaiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide