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Marinellite

A valid IMA mineral species
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About MarinelliteHide

09682710017272470819852.jpg
Giorgio Marinelli
Formula:
(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O
Colour:
Colourless to pale yellowish; blue, pale blue
Lustre:
Vitreous
Hardness:
5½
Specific Gravity:
2.405
Crystal System:
Trigonal
Name:
Named in honor of Giorgio Marinelli (28 October 1922, Florence, Italy - 28 March 1993, Pisa, Italy), professor in the Earth Science Department, University of Pisa, Italy.

Unique IdentifiersHide

Mindat ID:
25638
Long-form identifier:
mindat:1:1:25638:6

Similar NamesHide

MoronoliteA synonym of Jarosite

IMA Classification of MarinelliteHide

Classification of MarinelliteHide

9.FB.05

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
B : Tektosilicates with additional anions

Mineral SymbolsHide

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

SymbolSourceReference for Standard
MrnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of MarinelliteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of MarinelliteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless to pale yellowish; blue, pale blue
Streak:
White
Hardness:
5½ on Mohs scale
Hardness Data:
Measured
Cleavage:
Poor/Indistinct
on {001}
Fracture:
Conchoidal
Density:
2.405 g/cm3 (Measured)    2.4 g/cm3 (Calculated)

Optical Data of MarinelliteHide

Type:
Uniaxial (+)
RI values:
nω = 1.495 nε = 1.497
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.

Surface Relief:
Moderate (negative)
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.
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.
Pleochroism:
Non-pleochroic

Chemistry of MarinelliteHide

Mindat Formula:
(Na,K)42Ca6(Al6Si6O24)6(SO4)8Cl2 · 3H2O
Element Weights:
Element% weight
O44.848 %
Si15.833 %
Al15.211 %
Na15.121 %
S4.017 %
Ca3.766 %
Cl1.110 %
H0.095 %

Calculated from ideal end-member formula.
O
Si
Al
Na
S
Ca
Cl
H

Crystallography of MarinelliteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
P31c
Cell Parameters:
a = 12.88 Å, c = 31.761 Å
Ratio:
a:c = 1 : 2.466
Unit Cell V:
4563.1 ų
Z:
1

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0007021MarinelliteBonaccorsi E, Orlandi P (2003) Marinellite, a new feldspathoid of the cancrinite-sodalite group European Journal of Mineralogy 15 1019-102720030293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of MarinelliteHide

General Appearance of Type Material:
Anhedral crystals to 2 mm.
Place of Conservation of Type Material:
Natural History Museum, University of Pisa, Italy, number 13216.
Geological Setting of Type Material:
In an ejected volcanic block which was the product of a syntexis between a trachytic magma and the evaporitic rocks.
Associated Minerals at Type Locality:

Synonyms of MarinelliteHide

Other Language Names for MarinelliteHide

German:Marinellit
Simplified Chinese:玛令南利石
Traditional Chinese:瑪令南利石

Relationship of Marinellite to other SpeciesHide

Other Members of Cancrinite Group:
Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P31c
Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P31c
Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
BetziteNa6Ca2(Al6Si6O24)Cl4Hex. 6 : P63
Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
Bystrite(Na,K)7Ca(Al6Si6O24)(S5)ClTrig. 3m : P31c
Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex. 6mm : P63mc
CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P31c
Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)Hex. 6 : P63
Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2OHex. 6/m : P63/m
Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P31c
HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex. 6 : P63
KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 32 : R32
KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2Hex. 622 : P6322
PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex. 6 : P63
Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4Hex. 6/m : P63/m
Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
SteudeliteNa3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2OHex. 6m2 : P62c
SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P31c
Tounkite(Na,Ca,K)8(Si6Al6)O24(SO4)2Cl · 0.5H2OHex. 622 : P6222
'UM2004-48-SiO:AlClCaNaS'(Na,Ca)8(Si6Al6)O24(SO4)1.7Cl1.3
'UM2009-23-SiO:AlCCaClHKNaS'(Na,Ca)24K10[(Si,Al)60O120](SO4)5.6Cl1.5(CO3)0.4 · 11H2OTrig. 3 : P3
Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Marinellite associated with BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Related Minerals - Strunz-mindat GroupingHide

9.FB.Perchukite-(Y)PbYAsSi2O8Mon. 2/m : B2/b
9.FB.Åsgruvanite-(Ce)Ce16Ca5Al(SiO4)6(AsO3)8(CO3)2Cl4F3(OH)2Trig. 3m(32/m) : P3m1
9.FB.SteudeliteNa3(K17Ca7)Ca4(Al24Si24O96)(SO3)6F6 · 4H2OHex. 6m2 : P62c
9.FB.Wenlanzhangite-(Y)Y2V3+2V4+2(SiO4)2O4(OH)4Tric. 1 : P1
9.FB.SlyudyankaiteNa28Ca4(Si24Al24O96)(SO4)6(S6)1/3(CO2) · 2H2OTric. 1 : P1
9.FB.Bolotinaite(Na7◻)(Al6Si6O24)F · 4H2OIso. 43m : I43m
9.FB.SapozhnikoviteNa8(Al6Si6O24)(HS)2Iso. 43m : P43n
9.FB.BetziteNa6Ca2(Al6Si6O24)Cl4Hex. 6 : P63
9.FB.05Quadridavyne(Na,K)6Ca2(Al6Si6O24)Cl4Hex. 6/m : P63/m
9.FB.05SulfhydrylbystriteNa5K2Ca[Al6Si6O24](S5)2(SH)Trig. 3m : P31c
9.FB.05Afghanite(Na,K)22Ca10(Si24Al24O96)(SO4)6Cl6Trig. 3m : P31c
9.FB.05Bystrite(Na,K)7Ca(Al6Si6O24)(S5)ClTrig. 3m : P31c
9.FB.05Franzinite(Na,K)6Ca2(Al6Si6O24)(SO4)2 · 0.5H2OHex.
9.FB.05KyanoxaliteNa7(Al6-xSi6+xO24)(C2O4)0.5+x · 5H2O (0 < x < 0.5)Hex. 6 : P63
9.FB.05Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2OHex. 6 : P63
9.FB.05Farneseite(Na,Ca,K)56(Al6Si6O24)7(SO4)12 · 6H2OHex. 6/m : P63/m
9.FB.05Alloriite(Na,Ca,K)26Ca4(Al6Si6O24)4(SO4)6Cl6Trig. 3m : P31c
9.FB.05Liottite(Na,K)16Ca8(Al6Si6O24)3(SO4)5Cl4Hex. 6 : P6
9.FB.05DepmeieriteNa8(Al6Si6O24)(PO4,CO3)1-x · 3H2O (x<0.5)Hex. 6 : P63
9.FB.05Biachellaite(Na,Ca,K)8(Al6Si6O24)(SO4)2(OH)0.5 · H2OTrig. 3 : P3
9.FB.05Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2OHex. 6 : P63
9.FB.05CancrisiliteNa7(Al5Si7O24)(CO3) · 3H2OHex. 6mm : P63mc
9.FB.05Fantappièite[Na82.5Ca33K16.5](Si99Al99O396)(SO4)33 · 4H2OTrig. 3 : R3
9.FB.05CarbobystriteNa8(Al6Si6O24)(CO3) · 3.5H2OTrig. 3m : P31c
9.FB.05MicrosommiteNa4K2Ca2(Al6Si6O24)(SO4)Cl2Hex. 622 : P6322
9.FB.05PitiglianoiteNa6K2(Al6Si6O24)(SO4) · 2H2OHex. 6 : P63
9.FB.05Tounkite(Na,Ca,K)8(Si6Al6)O24(SO4)2Cl · 0.5H2OHex. 622 : P6222
9.FB.05Balliranoite(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)Hex. 6 : P63
9.FB.05Giuseppettite(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2Trig. 3m : P31c
9.FB.05Sacrofanite(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6 · 2H2OHex.
9.FB.05KircheriteNa5Ca2K(Al6Si6O24)(SO4)2 · 0.33H2OTrig. 32 : R32
9.FB.05HydroxycancriniteNa8(Al6Si6O24)(OH)2 · 2H2OHex. 6 : P63
9.FB.05Davyne(Na,K)6Ca2(Al6Si6O24)(Cl2,SO4)2Hex. 6/m : P63/m
9.FB.10HaüyneNa3Ca(Si3Al3)O12(SO4)Iso. 43m : P43n
9.FB.10LazuriteNa7Ca(Al6Si6O24)(SO4)(S3) · H2OIso. 43m : P43n
9.FB.10DanaliteBe3Fe2+4(SiO4)3SIso. 43m : P43n
9.FB.10HelvineBe3Mn2+4(SiO4)3SIso. 43m : P43n
9.FB.10KamaishiliteCa2(Al2SiO6)(OH)2Tet.
9.FB.10SodaliteNa4(Si3Al3)O12ClIso. 43m : P43n
9.FB.10NoseanNa8(Al6Si6O24)(SO4) · H2OIso. 43m : P43n
9.FB.10GenthelviteBe3Zn4(SiO4)3SIso. 43m : P43n
9.FB.10BicchuliteCa2(Al2SiO6)(OH)2Iso. 43m : I43m
9.FB.10Tsaregorodtsevite(N(CH3)4)(AlSi5O12)Orth. 222 : I222
9.FB.10VladimirivanoviteNa6Ca2(Al6Si6O24)(SO4,S3,S2,Cl)2 · H2OOrth. mmm(2/m2/m2/m)
9.FB.10Tugtupite(BeAlSi)Na4(SiO4)3ClTet. 4 : I4
9.FB.15MarialiteNa4Al3Si9O24ClTet. 4/m : I4/m
9.FB.15MeioniteCa4Al6Si6O24CO3Tet. 4/m : I4/m
9.FB.15Silvialite(Ca,Na)4(Al6Si6O24)(SO4,CO3)Tet. 4/m : I4/m

Fluorescence of MarinelliteHide

Other InformationHide

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 MarinelliteHide

References for MarinelliteHide

Localities for MarinelliteHide

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.
Costa Rica
 
  • Cartago Province
    • Oreamuno Canton
      • Irazú Volcano
Ulloa et al. (2018)
Ulloa et al. (2018)
Italy
 
  • Lazio
    • Metropolitan City of Rome Capital
      • Campagnano di Roma
in the collection of Luigi Mattei
      • Magliano Romano
Bellatreccia et al. (2006)
      • Sacrofano
M.E. Ciriotti collection (EDS probed) +1 other reference
 
and/or  
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