Sapphire Company Profile

Aggregated data from the web about Sapphire

Company Name	Sapphire
Website	https://www.sapphiretech.com
Snippet	SAPPHIRE Technology continues to be a world leading manufacturer and global supplier of innovative graphics and mainboard products, delivering its AMD Radeon based products to the PC markets addressing gaming, eSports and performance graphics enthusiasts as well as delivering an array of professional graphics products and embedded system solutions.
Color	Typically blue, but varies
Luster	Vitreous
Streak	Colorless
Category	Oxide mineral
Cleavage	Poor
Fracture	Conchoidal, splintery
Twinning	Both growth twins (in various orientations) and polysynthetic glide twinning on the rhombohedron [1011
Fusibility	Infusible
Solubility	Insoluble
Diaphaneity	Transparent to nearly opaque
Pleochroism	Strong
Space group	R3c
Crystal class	Hexagonal scalenohedral (3m) H-M symbol: (32/m)
Crystal habit	As crystals, massive and granular
Melting point	2,030–2,050 °C
Crystal system	Trigonal
Refractive index	nω=1.768–1.772 nε=1.760–1.763, Birefringence 0.008
Specific gravity	3.98~4.06
Optical properties	Abbe number 72.2
Mohs scale hardness	9.0
Other characteristics	Coefficient of thermal expansion (5.0–6.6)×10−6/K[citation needed]relative permittivity at 20 °C ε = 8.9–11.1 (anisotropic)[1]
Formula.mw-parser-output .nobold{font-weight:normal}(repeating unit)	Aluminium oxide, Al2O3

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