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Sarcolite

A valid IMA mineral species - grandfathered
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About SarcoliteHide

Formula:
Na4Ca12Al8Si12O46(SiO4,PO4)(OH,H2O)4(CO3,Cl)
Colour:
Flesh-pink, flesh-red, colourless
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
2.91 - 2.96
Crystal System:
Tetragonal
Name:
From Greek, Sarka, flesh, referring to its flesh-red color.
This page provides mineralogical data about Sarcolite.


Unique IdentifiersHide

Mindat ID:
3533
Long-form identifier:
mindat:1:1:3533:6

Similar NamesHide

IMA Classification of SarcoliteHide

Classification of SarcoliteHide

9.EH.15

9 : SILICATES (Germanates)
E : Phyllosilicates
H : Transitional structures between phyllosilicate and other silicate units
76.3.2.1

76 : TECTOSILICATES Al-Si Framework
3 : Al-Si Framework with other Be/Al/Si frameworks
17.2.6

17 : Silicates Containing other Anions
2 : Silicates with fluoride

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

Physical Properties of SarcoliteHide

Vitreous
Transparency:
Translucent
Colour:
Flesh-pink, flesh-red, colourless
Streak:
White
Hardness:
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
2.91 - 2.96 g/cm3 (Measured)    2.86(4) g/cm3 (Calculated)

Optical Data of SarcoliteHide

Type:
Uniaxial (+)
RI values:
nω = 1.604(1) nε = 1.615(3)
Max. Birefringence:
δ = 0.011
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.

Surface Relief:
Moderate

Chemistry of SarcoliteHide

Mindat Formula:
Na4Ca12Al8Si12O46(SiO4,PO4)(OH,H2O)4(CO3,Cl)
Element Weights:
Element% weight
O43.805 %
Ca23.101 %
Si17.538 %
Al10.368 %
Na4.417 %
C0.577 %
H0.194 %

Calculated from ideal end-member formula.
Common Impurities:
Ti,Fe,Mn,Mg,Sr,K,Cl,P,S

Crystallography of SarcoliteHide

Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I4/m
Cell Parameters:
a = 12.343(5) Å, c = 15.463(5) Å
Ratio:
a:c = 1 : 1.253
Unit Cell V:
2,355.78 ų (Calculated from Unit Cell)
Z:
4
Morphology:
equant pseudocubic hemihedral crystals, to 2.5 cm; in irregular masses

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015662SarcoliteGiuseppetti G, Mazzi F, Tadini C (1977) The crystal structure of sarcolite Tschermaks Mineralogische und Petrographische Mitteilungen 24 1-211977Vesuvius volcano, Bay of Naples, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.747 Å(100)
3.343 Å(90)
2.853 Å(87)
2.762 Å(69)
2.941 Å(64)
3.215 Å(51)
2.998 Å(51)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
45b : [Other oxidized fumarolic minerals]
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
50 : Coal and/or oil shale minerals<0.36
Stage 10b: Anthropogenic minerals<10 Ka
54 : Coal and other mine fire minerals (see also #51 and #56)

Type Occurrence of SarcoliteHide

Other Language Names for SarcoliteHide

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Sarcolite associated with SodaliteNa4(Si3Al3)O12Cl

Related Minerals - Strunz-mindat GroupingHide

9.EH.05ManganoneptuniteKNa2Li(Mn2+)2Ti2[Si4O12]2Mon. m : Bb
9.EH.05MagnesioneptuniteKNa2Li(Mg)2Ti2[Si4O12]2Mon. 2/m : B2/b
9.EH.05NeptuniteKNa2Li(Fe2+)2Ti2[Si4O12]2Mon. m : Bb
9.EH.05WatatsumiiteKNa2Li(Mn2+)2V4+2[Si4O12]2Mon. m : Bb
9.EH.05RotherkopfiteKNa2Fe2+(Fe2+)2(Ti1.5Fe2+0.5)[Si4O12]2Mon. 2/m : B2/b
9.EH.10GrumantiteNa(HSi2O5) · H2OOrth. mm2 : Fdd2
9.EH.20UssingiteNa2AlSi3O8OHTric. 1 : P1
9.EH.25Telyushenkoite(Cs,Na,K)Na6[Be2Al3Si15O39]F2Trig. 3m(32/m) : P31m
9.EH.25Leifite(Na,H2O)Na6[Be2Al2(Al,Si)Si15O39]F2Trig. 3m : P3m1
9.EH.25EirikiteKNa6Be2(Si15Al3)O39F2Trig. 3m(32/m) : P3m1
9.EH.30NafertisiteNa3Fe2+10Ti2(Si6O17)2O2(OH)6F(H2O)2Mon. 2/m
9.EH.35VebleniteKNa(Fe2+5Fe3+4Mn7)Nb4(Si2O7)2(Si8O22)2O6(OH)10(H2O)3 Tric. 1 : P1

Other InformationHide

Notes:
(Historical description) With a blowtorch, swells up and melts into a phosphorescent white enamel. This occurs after considerable time and difficulty.
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 SarcoliteHide

References for SarcoliteHide

Localities for SarcoliteHide

Showing 9 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
 
  • Campania
    • Metropolitan City of Naples
      • Ercolano
        • San Vito
Ciriotti et al. (2011)
Vauquelin (1807) +2 other references
      • Pollena Trocchia
Achille Panunzi collection.
  • Lazio
    • Metropolitan City of Rome Capital
Stoppani et al. (1982)
  • Trentino-Alto Adige/Südtirol
    • Trento Province
      • Moena
De Michele (1974)
      • Predazzo
Exel (1987)
Poland
 
  • Silesian Voivodeship
    • Gliwice County
      • Knurów
- (Poland) +1 other reference
USA
 
  • Connecticut
    • Litchfield County
      • Harwinton
Januzzi et al. (1976)
  • Nevada
    • Lander County
      • McCoy Mining District
Castor et al. (2004)
 
and/or  
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