Karasugite Mineral Data

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General Karasugite Information

Chemical Formula:

SrCaAl(F,OH)7

Composition:

Molecular Weight = 284.18 gm

Strontium 30.83 % Sr 36.46 % SrO

Calcium 14.10 % Ca 19.73 % CaO

Aluminum 9.49 % Al 17.94 % Al₂O₃

Hydrogen 0.62 % H 5.55 % H₂O

Oxygen 9.85 % O

Fluorine 35.10 % F 35.10 % F

- % F -14.78 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

SrCaAlF_5.25(OH)_1.75

Environment:

Secondary mineral formed in fissures in the oxidation zone of veins of iron ores in tectonic breccias.

IMA Status:

Approved IMA 1994

Locality:

Karasug F-REE-barite-fluorite deposit, 15 km north of Karasug, western Tannu-Ola Mountains, Tuva, Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the localtiy.

Name Pronunciation:

Karasugite + Pronunciation

Synonym:

IMA1993-013

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Karasugite Crystallography

Axial Ratios:

a:b:c =0.6852:1:0.5067

Cell Dimensions:

a = 8.215, b = 11.989, c = 6.076, Z = 4; beta = 96.22° V = 594.90 Den(Calc)= 3.17

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 4.25(1), 3.06(0.8), 3.64(0.8),

Physical Properties of Karasugite

Cleavage:

{100} Perfect

Color:

Colorless.

Density:

3.206

Diaphaneity:

Transparent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Karasugite

Optical Data:

Biaxial (+), a=1.424, b=1.432, g=1.4415, bire=0.0175, 2V(Calc)=86, 2V(Meas)=94-94.5.

Calculated Properties of Karasugite

Electron Density:

Bulk Density (Electron Density)=2.99 gm/cc
note: Specific Gravity of Karasugite =3.17 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Karasugite= 36.84 barns/electron
U=PE_Karasugite x rElectron Density= 110.13 barns/cc.

Radioactivity:

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

Karasugite Classification

Dana Class:

11.06.21.01 (11)Halide Complexes; Alumino-fluorides

(11.06)with miscellaneous formulae

(11.06.21)Dana Group

11.06.21.01 Karasugite SrCaAl(F,OH)7 P 2₁/c 2/m

Strunz Class:

03.CB.30 03 - HALIDES

03.C - Complex Halides

03.CB -Neso-aluminofluorides

03.CB.30 Karasugite SrCaAl(F,OH)7 P 2₁/c 2/m

Other Karasugite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)

See Also:

Links to other databases for Karasugite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info

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Print or Cut-and-Paste your Karasugite Specimen Label here :

Karasugite

SrCaAl(F,OH)7
Dana No: 11.06.21.01 Strunz No: 03.CB.30
Locality:

Notes: