Moissanite  Mineral Data

Moissanite Mineral Data

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General Moissanite Information

Help on Chemical  Formula: Chemical Formula: SiC
Help on Composition: Composition: Molecular Weight = 40.10 gm
   Silicon  70.04 %  Si
   Carbon   29.96 %  C
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: SiC
Help on Environment: Environment: Found in lunar samples and meteorites. Widely used as an abrasive. Clear, synthetic material marketed as a gem under the mineral name.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1905
Help on Locality: Locality: Canyon Diablo meteorite, Meteor Crater, Coconino County, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Henri Moissan (1852-1907), French chemist.
Help on Name Pronunciation: Name Pronunciation: Moissanite + Pronunciation Say MOISSANITE
Help on Synonym: Synonym: Carborundum
 

Moissanite Image

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Moissanite

Comments: Gemmy, platy crystal of moissanite shown with largest (001) face. The arrow indicates a drop-shaped, black metallic inclusion. (AmMin, 88:1818).
Location: Found in a cobble at a beach along the Turkish coast of the Mediterranean Sea, around 150 km NW from Izmir, and is most likely derived from Tertiary volcanic rocks outcropping in the area. Scale: Scale bar 300 µ-m.
© American Mineralogist

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Moissanite   Silicon

Comments: Backscattered electron image of metallic inclusion in moissanite (SiC). The gray shading in the BSE mage consists mainly of pure silicon (Si metal). The brighter areas are composed of Fe-silicide. (AmMin, 88:1818).
Location: Found in a cobble at a beach along the Turkish coast of the Mediterranean Sea, around 150 km NW from Izmir, and is most likely derived from Tertiary volcanic rocks outcropping in the area. Scale: Scalebar 200 µ-m.
© American Mineralogist

Moissanite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.63291
Help on Cell Dimensions: Cell Dimensions: a = 3.081, c = 5.031, Z = 2; V = 41.36 Den(Calc)= 3.22
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.36(1), 2.67(0.8), 2.52(0.5),1.54(0.4), 1.42(0.3), 1.31(0.2), 1.83(0.2), 1.29(0.1),
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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: wurtzite structure

 

Physical Properties of Moissanite

Help on Cleavage: Cleavage: {0001} Indistinct
Help on Color: Color: Blue, Colorless, Green, Green yellow, Yellow.
Help on Density: Density: 3.218 - 3.22, Average = 3.21
Help on Diaphaneity: Diaphaneity: Transparent to Opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 9.5 - Silicon Carbide
Help on Luster: Luster: Metallic
Help on Streak: Streak: greenish gray
 

Optical Properties of Moissanite

Help on Dichroism (e): Dichroism (e): weak blue.
Help on Dichroism (w): Dichroism (w): weaker blue.
Help on Optical Data: Optical Data: Uniaxial (+), w=2.654, e=2.967, bire=0.3130.
 

Calculated Properties of Moissanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.21 gm/cc
note: Specific Gravity of Moissanite =3.22 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEMoissanite = 2.39 barns/electron
U=PEMoissanite x rElectron Density= 7.67 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Moissanite is Not Radioactive
 

Moissanite Classification

Help on  Dana Class: Dana Class: 01.03.08.01 (01)Native Elements
  (01.03)with semi-metallic and non-metallic elements
  (01.03.08)Dana Group
 
01.03.08.01 Moissanite SiC P 63mc 6mm
Help on  Strunz Class: Strunz Class: 01.DA.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.D - Nonmetallic Carbides and Nitrides
  01.DA -Nonmetallic carbides
 
01.DA.05 Moissanite SiC P 63mc 6mm
 

Other Moissanite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Moissanite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - Tradeshop.com - The Rainbow of Gems
15 - WWW-MINCRYST

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Ask about Moissanite here :
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Print or Cut-and-Paste your Moissanite Specimen Label here :

Moissanite

SiC
Dana No: 01.03.08.01 Strunz No: 01.DA.05
Locality:

 

Notes: