Koechlinite Mineral Data (original) (raw)

General Koechlinite Information

Help on Chemical Formula: Chemical Formula:

Bi2MoO6

Help on Composition: Composition:

Molecular Weight = 609.90 gm

Bismuth 68.53 % Bi 76.40 % Bi2O3

Molybdenum 15.73 % Mo 23.60 % MoO3

Oxygen 15.74 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Bi2MoO6

Help on Environment: Environment:

In cavities in vein material composed of quartz, bismuth, and smaltite.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1914

Help on Locality: Locality:

Daniel mine, Schneeberg, Sazony, Germany. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Rudolf Koechlin (1862-1939), Austrian mineralogist.

Help on Name Pronunciation: Name Pronunciation:

Koechlinite + Pronunciation Say KOECHLINITE

Help on Synonym: Synonym:

ICSD 17070

PDF 21-102

Koechlinite Image

Click Here for Larger Koechlinite Image in a New Browser Window Images:

Click Here for Larger Koechlinite Image Koechlinite Comments: Greenish yellow crystal of koechlinite on quartz. Location: Adam Heber Mine, Neustädtel, Schneeberg district, Erzgebirge, Saxony, Germany.Scale: Picture size 1 mm. © Thomas Witzke / Abraxas-Verlag

Koechlinite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.3393:1:0.3381

Help on Cell Dimensions: Cell Dimensions:

a = 5.502, b = 16.213, c = 5.483, Z = 4; V = 489.11 Den(Calc)= 8.28

Help on Crystal System: Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C mca

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.15(1), 1.652(0.2), 2.741(0.18),

Help on Forms: Forms:

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| | Forms:( 0 1 0) ( 0 2 1) ( 1 3 1) ( 0 0 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Click Here for Large Koechlinite Structure Window Crystal Structure:

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| | Teller R G , Brazdil J F , Grasselli R K , Jorgensen J D , Acta Crystallographica, Section C , 40 (1984) p.2001-2005, The structure of gamma-bismuth molybdate, Bi2MoO6, by powder neutron diffraction, Locality: synthetic | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Koechlinite

Help on Cleavage: Cleavage:

{010} Perfect

Help on Color: Color:

Greenish yellow, Yellow, White.

Help on Density: Density:

8.26

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Fracture: Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

yellow white

Optical Properties of Koechlinite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.121 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.118 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1932,KPDmeas= 0.1937,KC= 0.1728
Ncalc = 2.43

Help on Optical Data: Optical Data:

Biaxial (-), a=2.52, b=2.61, g=2.67, bire=0.1500, 2V(Calc)=76, 2V(Meas)=large. Dispersion r < v strong.

Calculated Properties of Koechlinite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=6.95 gm/cc
note: Specific Gravity of Koechlinite =8.28 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Help on Photoelectric: Photoelectric:

PEKoechlinite =1,342.38 barns/electron
U=PEKoechlinite x rElectron Density=9,330.81 barns/cc.

Help on Radioactivity: Radioactivity:

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

Koechlinite Classification

Help on Dana Class: Dana Class:

48.02.02.01 (48)Anhydrous Molybdates and Tungstates

(48.02)where (A)2 XO4

(48.02.02)Dana Group

48.02.02.01 Koechlinite Bi2MoO6 C mca 2/m 2/m 2/m

Help on Strunz Class: Strunz Class:

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

04.D - Metal:Oxygen = 1:2 and similar

04.DE -With medium-sized cations; with various polyhedra

04.DE.15 Koechlinite Bi2MoO6 C mca 2/m 2/m 2/m

04.DE.15 Russellite Bi2WO6 P ca21 mm2

04.DE.15 Tungstibite Sb2O3•WO3 P 22121 2 2 2

Other Koechlinite Information

Help on References: References:

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

Help on See Also: See Also:

Links to other databases for Koechlinite :
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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Ask about Koechlinite here :
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Print or Cut-and-Paste your Koechlinite Specimen Label here :

Koechlinite

Bi2MoO6
Dana No: 48.02.02.01 Strunz No: 04.DE.15
Locality:

Notes: