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
X Ray Diffraction:
By Intensity(I/Io ): 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:
PEMroseite = 168.04 barns/electronU=PEMroseite x r Electron 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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Mroseite
CaTe++++(CO3)O2
Dana No: 34.08.04.01 Strunz No: 04.JL.15
Locality:
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