Sapphrine
Sapphirine is a rare mineral, a silicate of magnesium and aluminium with the chemical formula (Mg,Al)8(Al,Si)6O20 (with iron as a major impurity). Named for its sapphire-like colour, sapphirine is primarily of interest to researchers and collectors: well-formed crystals are treasured and occasionally cut into gemstones.
Color - Dark blue, bluish to brownish green,green,gray
Crystal habit - anhedral, granular, tabular, aggregate
Crystal system - Monoclinic
Cleavage - Perfect [010]
Fracture - Subconchoidal to uneven
Mohs scale hardness - 7.5
Luster - Vitreous
Streak - White
Specific gravity - 3.54 – 3.51
Refractive index - 1.701 to 1.718
Birefringence - -0.006–0.007
Pleochroism - Strongly trichroic
Displaying 1 to 6 (of 6 products)
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Item Name : Sapphrine Item Number : S03617 Weight : 0.15ct Dimension :3.5mm x 3.5mm x 2mm Cut : Diamond cut Origin : Sri Lanka Shape :Round... |
$15.00
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Item Name : Sapphrine Item Number : S03615 Weight : 0.24 ct Dimension :4mm x 4mm x 2.5mm Cut : Diamond cut Origin : Sri Lanka Shape :Round... |
$30.00
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Item Name : Sapphrine Item Number : S03616 Weight : 0.41 ct Dimension :6mm x 4.1mm x 2.8mm Cut : Portuguese cut Origin : Sri Lanka Shape :... |
$75.00
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Item Name : Sapphrine Item Number : S03614 Weight : 0.90 ct Dimension :between 2 - 3mm Cut : Diamond cut Origin : Sri Lanka Shape : Round... |
$50.00
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Item Name : Sapphrine Item Number : S03608 Weight : 1.72 ct Dimension :8.6mm x 6.5mm x 4.2mm Cut :Step cut Origin : Sri Lanka Shape :Cushion... |
$360.00
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Item Name : Sapphrine Item Number : S03613 Weight : 19.50 ct Dimension : Rough Cut : Cab grade Rough Origin : Sri Lanka Shape : Rough Color... |
$20.00
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Displaying 1 to 6 (of 6 products)
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