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Diamond

IMA-Approved Mineral Species


Properties and Data
Physical Properties
Composition
C
Chemical Name
Carbon
Molecular Weight
12.011 g/mol
Density
3.5 - 3.53 g/cm3
Mohs Hardness
10
Decomposition Point
760 °C (1400 °F)
Crystal System
Isometric
Optical Properties
Type
Isotropic
Refractive Index
n = 2.4076 - 2.4354
Dispersion Factor
0.044
Additional Information
Otherwise known by Bort, Carbanado, or Adamant

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Variants and Types
Intrinsic
Intrinsic
Color: Colorless
Production and Synthesis
High-Pressure High-Temperature Synthesis
HPHT
Involves supplying extreme pressures / temperatures on ingredients or a seed crystal to produce larger crystals, which can then be used as seeds again or simply used on their own.
Chemical Vapor Deposition
CVD
Involves leeching specialty gasses onto a heated / pressurized environment with seed crystals. Slowly builds up atomic layers of material until a solid crystal is produced.
Sintering and Annealing
Sintering and Annealing
An umbrella of methods involving heat treatment or controlled heating / burning to form solids and crystals. Often used for making polycrystalline media or annealing monocrystalline media.
References
REFERENCES





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