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General Diamond Information

Help on Chemical  Formula: Chemical Formula: C
Help on Composition: Composition: Molecular Weight = 12.01 gm
   Carbon 100.00 %  C
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: C
Help on Environment: Environment: Gas rich, ultra-basic diatremes from mantle depths (>30 km)and alluvial placer deposits derived from the Kimberlite rocks. Kimberlite = olivine, garnet, pyroxene, and calcite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Kimberly, republic of South Africa. India. Brazil. Ural Mountains, Russia. Murfreesboro, Arkansas, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, adamas, meaning "invincible" or "hardest."
Help on Synonym: Synonym: Boart
  Booart
  Carbonado
 

Diamond Image

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Diamond

Comments: Single octahedral crystal of diamond.
Location: Ghana, Africa. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

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Diamond

Comments: Translucent diamond penetration twin crystals.
Location: Mbuji-Mayi (Miba), Democratic Republic of the Congo (Zaire). Scale: 3.70 carats, 7x7x7 mm.
© John Betts - Fine Minerals

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Diamond

Comments: Photomicrographs (PPL) of numerous microdiamonds in Kumdy-Kol caboniferous dolomite marble (Elements v1, no 2).
Location: Kokchetav Massif, Kumdy-Kol ultra high pressure facies area, northern Kazakhstan. Scale: See Image.
© Elements Magazine

Diamond Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 3.5668, Z = 8; V = 45.38 Den(Calc)= 3.52
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.06(1), 1.261(0.25), 1.0754(0.16),
Help on Forms: Forms:

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RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

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S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: [ 1 1 1]

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Click Here for Large Diamond Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

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H - Help Screen
I - Data Info
A - Atoms On/Off
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B - Bonds On/Off
Help on Above


Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York

 

Physical Properties of Diamond

Help on Cleavage: Cleavage: [111] Perfect, [111] Perfect, [111] Perfect
Help on Color: Color: Colorless, White, Gray, Black, Blue.
Help on Density: Density: 3.5 - 3.53, Average = 3.51
Help on Diaphaniety: Diaphaniety: Transparent to Subtransparent to translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 10 - Diamond
Help on Luminescence: Luminescence: Fluorescent.
Help on Luster: Luster: Adamantine
Help on Streak: Streak: colorless
 

Optical Properties of Diamond

Help on Optical Data: Optical Data: Isotropic, n=2.4175-2.4178.
 

Calculated Properties of Diamond

Help on Electron Density: Electron Density:

relectron=3.52 gm/cc
note: rDiamond =3.52 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.011
Boson Index = 0.989
Help on Photoelectric: Photoelectric:

PEDiamond = 0.16 barns/electron
U=PEDiamond x relectron= 0.56 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Diamond is Not Radioactive

 

Diamond Classification

Help on  Dana Class: Dana Class: 1.3.6.1 (1)Native Elements
  (1.3)with semi-metallic and non-metallic elements
  (1.3.6)Carbon Polymorph group
 
1.3.6.1 Diamond C F d3m 4/m 3 2/m
 
1.3.6.2 Graphite C P 63/mmc 6/m 2/m 2/m
 
1.3.6.3 Lonsdaleite C P 63/mmc 6/m 2/m 2/m
 
1.3.6.4 Chaoite C P 6/mmm 6/m 2/m 2/m
 
1.3.6.5 Fullerite! C60 pseudo-CUBIC 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: I/B.02-40 I - Elements
  I/B - Semimetals and nonmetals
  I/B.02 - Carbon series, Graphite - Lonsdaleite
 
I/B.02-10 Graphite C P 63/mmc 6/m 2/m 2/m
 
I/B.02-20 Chaoite C P 6/mmm 6/m 2/m 2/m
 
I/B.02-30 Moissanite SiC P 63mc 6mm
 
I/B.02-40 Diamond C F d3m 4/m 3 2/m
 
I/B.02-50 Lonsdaleite C P 63/mmc 6/m 2/m 2/m
 

Other Diamond Information

Help on References: References: NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Diamond :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Applied Mineralogy 4 -Athena 5 - CalTech Mineral Spectroscopy 6 - Crocoite.com Mineral Locations 7 - Glendale Community College 8 -Google Images 9 -Google Scholar 10 -Handbook of Mineralogy (UofA) 11 - HyperPhysics 12 -MinDAT 13 -MinMax(Deutsch) 14 -MinMax(English) 15 - Mineral and Gemstone Kingdom 16 -Mineralienatlas (Deutsch) 17 - Minerals of Wisconsin 18 -NSDL Reciprocal Net (JAVA) 19 - Philatelic Mineralogy 20 -QUT Mineral Atlas 21 - Scandinavian mineral gallery 22 - Tradeshop.com - The Rainbow of Gems 23 - University of Manchester - Mineral Structure 24 -University of Texas at Austin 25 - WWW-MINCRYST

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Diamond

C
Dana No: 1.3.6.1 Strunz No: I/B.02-40
Locality:

 

Notes:

 

 
   
 
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