Mroseite Mineral Data

General Mroseite Information

Chemical Formula:

CaTe++++(CO3)O2

Composition:

Molecular Weight = 259.69 gm

Calcium 15.43 % Ca 21.59 % CaO

Tellurium 49.14 % Te 61.46 % TeO₂

Carbon 4.63 % C 16.95 % CO₂

Oxygen 30.81 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaTe(CO₃)O₂

Environment:

Secondary mineral in telluride-bearing viens.

IMA Status:

Approved IMA 1975

Locality:

Moctezuma mine, Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data.

Name Origin:

Named for Mary Emma Mrose (1910-), American mineralogist, U. S. Geological Survey.

Name Pronunciation:

Mroseite

Synonym:

ICSD 4319

PDF 29-309

Mroseite Image

Images:

Mroseite

Comments: White, flaky patches of mroseite in complex ore matrix.
Location: Bambolla Mine, Moctezuma, Sonora, Mexico. Scale: Not Given.
© Rob Lavinsky

Mroseite Crystallography

Axial Ratios:

a:b:c =0.6209:1:0.9444

Cell Dimensions:

a = 6.93, b = 11.16, c = 10.54, Z = 8; V = 815.15 Den(Calc)= 4.23

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P bca

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

By Intensity(I/I_o): 3.14(1), 5.14(0.9), 4.2(0.8),

Physical Properties of Mroseite

Color:

Colorless, White.

Density:

4.35

Diaphaneity:

Transparent

Hardness:

4 - Fluorite

Luster:

Adamantine

Streak:

white

Optical Properties of Mroseite

Gladstone-Dale:

CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1994,KPDmeas= 0.1939,KC= 0.2046
Ncalc = 1.87 - 1.89

Optical Data:

Biaxial (-), a=1.79, b=1.85, g=1.89, bire=0.1000, 2V(Calc)=76, 2V(Meas)=80.

Calculated Properties of Mroseite

Electron Density:

Bulk Density (Electron Density)=3.84 gm/cc
note: Specific Gravity of Mroseite =4.23 gm/cc.

Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Photoelectric:

PE_Mroseite= 168.04 barns/electron
U=PE_Mroseite x rElectron Density= 645.97 barns/cc.

Radioactivity:

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

Mroseite Classification

Dana Class:

34.08.04.01 (34)Selenites - Tellurites - Sulfites

(34.08)Dana Type

(34.08.04)Dana Group

34.08.04.01 Mroseite CaTe(CO3)O2 P bca 2/m 2/m 2/m

Strunz Class:

04.JL.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JL -Tellurites with additional anions, without H2O

04.JL.15 Mroseite CaTe(CO3)O2 P bca 2/m 2/m 2/m

Other Mroseite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Mroseite :
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
15 - WWW-MINCRYST

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

Mroseite

CaTe++++(CO3)O2
Dana No: 34.08.04.01 Strunz No: 04.JL.15
Locality:

Notes:

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