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SPINEL

           
 
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PL GEMS, INC.
650 S. Hill Street, Booth D16
Los Angeles, CA 90014

Phone: (213) 623-2829, Fax: (213) 622-3414

Email: plgems@gmail.com
Website: www.plgems.com

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SPINEL
Gemstone:
Shape:
Weight (ct):
 to
 
 
Spinel Facts 
Chemical formula MgAl2O4
Identification
Color Various, red to blue to mauve. Dark green, brown. Black
Crystal habit Cubic, octahedral
Crystal system Isometric
Cleavage Indistinct
Fracture Conchoidal, uneven
Mohs Scale hardness 8.0
Luster Vitreous
Refractive index 1.712-1.762
Pleochroism Absent
Streak White
Specific gravity 3.54-3.63