Sarcolite Mineral Data

General Sarcolite Information

Chemical Formula:

NaCa6Al4Si6O24F (?)

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

Empirical Formula:

NaCa₆Al₄Si₆O₂₄F

Environment:

In contact metamorphosed limestone-bearing volcanic ejecta.

IMA Status:

Valid Species (Pre-IMA) 1807

Locality:

Monte Somma, Vesuvious, Italy. Link to MinDat.org Location Data.

Name Origin:

From the Greek for "flesh", alluding to the color.

Name Pronunciation:

Sarcolite + Pronunciation

Synonym:

ICSD 100413

PDF 42-1367

Sarcolite Image

Images:

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

Axial Ratios:

a:c = 1:1.25277

Cell Dimensions:

a = 12.343, c = 15.463, Z = 4; V = 2,355.78 Den(Calc)= 2.66

Crystal System:

Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: I 4/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.75(1), 3.34(0.8), 2.85(0.7),

Physical Properties of Sarcolite

Color:

Flesh pink, Red, Reddish white.

Density:

2.91 - 2.96, Average = 2.93

Diaphaneity:

Transparent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Habit:

Pseudo Cubic - Crystals show a cubic outline.

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Sarcolite

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

Optical Data:

Uniaxial (+), w=1.604, e=1.615, bire=0.0110.

Calculated Properties of Sarcolite

Electron Density:

Bulk Density (Electron Density)=2.91 gm/cc
note: Specific Gravity of Sarcolite =2.94 gm/cc.

Fermion Index:

Fermion Index = 0.0088860658
Boson Index = 0.9911139342

Photoelectric:

PE_Sarcolite= 4.21 barns/electron
U=PE_Sarcolite x rElectron Density= 12.26 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sarcolite is Not Radioactive

Sarcolite Classification

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

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

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Ford32)

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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Sarcolite

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

Notes:

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