Sarcolite Mineral Data

Sarcolite Mineral Data
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General Sarcolite Information

Help on Chemical Formula: Chemical Formula: NaCa6Al4Si6O24F (?)
Help on Composition: Composition: Molecular Weight = 942.88 gm
   Sodium     2.44 %  Na    3.29 % Na2O
   Calcium   25.50 %  Ca   35.68 % CaO
   Aluminum  11.45 %  Al   21.63 % Al2O3
   Silicon   17.87 %  Si   38.23 % SiO2
   Oxygen    40.72 %  O
   Fluorine   2.01 %  F     2.01 % F
               -   %   F    -0.85 % -O=F2    
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa6Al4Si6O24F
Help on Environment: Environment: In contact metamorphosed limestone-bearing volcanic ejecta.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1807
Help on Locality: Locality: Monte Somma, Vesuvious, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek for "flesh", alluding to the color.
Help on Name Pronunciation: Name Pronunciation: Sarcolite + Pronunciation Say SARCOLITE
Help on Synonym: Synonym: ICSD 100413
  PDF 42-1367
 

Sarcolite Image

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Sarcolite

Comments: Rounded colorless sarcolite crystals associated with orange gehlenite and black augite.
Location: Monte Somma, Vesuvius, Italy. Scale: See Image.
© Rruff Database

Sarcolite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.25277
Help on Cell Dimensions: Cell Dimensions: a = 12.343, c = 15.463, Z = 4; V = 2,355.78 Den(Calc)= 2.66
Help on Crystal System: Crystal System: Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 4/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.75(1), 3.34(0.8), 2.85(0.7),
Click Here for Large Sarcolite Structure Window Crystal Structure:

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Giuseppetti G , Mazzi F , Tadini C , Tschermaks Mineralogische und Petrographische Mitteilungen , 24 (1977) p.1-21, The crystal structure of sarcolite, Locality: Vesuvius volcano, Bay of Naples, Italy

 

Physical Properties of Sarcolite

Help on Color: Color: Flesh pink, Red, Reddish white.
Help on Density: Density: 2.91 - 2.96, Average = 2.93
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Pseudo Cubic - Crystals show a cubic outline.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Sarcolite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.11 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2291,KPDmeas= 0.2077,KC= 0.2064
Ncalc = 1.55 - 1.61
Help on Optical Data: Optical Data: Uniaxial (+), w=1.604, e=1.615, bire=0.0110.
 

Calculated Properties of Sarcolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.91 gm/cc
note: Specific Gravity of Sarcolite =2.94 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0088860658
Boson Index = 0.9911139342
Help on Photoelectric: Photoelectric: PESarcolite = 4.21 barns/electron
U=PESarcolite x rElectron Density= 12.26 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sarcolite is Not Radioactive
 

Sarcolite Classification
Help on Dana Class: Dana Class: 76.03.02.01 (76)Tectosilicate Al-Si Framework
  (76.03)with other Be/Al/Si frameworks
  (76.03.02)Dana Group
 
76.03.02.01 Sarcolite NaCa6Al4Si6O24F(?) I 4/m 4/m
Help on Strunz Class: Strunz Class: 09.EH.15 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EH -Transitional structures between phyllosilicate and other silicate units
 
09.EH.15 Sarcolite NaCa6Al4Si6O24F(?) I 4/m 4/m
 

Other Sarcolite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Sarcolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Sarcolite here :
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Print or Cut-and-Paste your Sarcolite Specimen Label here :

Sarcolite

NaCa6Al4Si6O24F (?)
Dana No: 76.03.02.01 Strunz No: 09.EH.15
Locality:

 

Notes: