Gemstone Characteristics
Yellow and Pink Sapphire

Chemical Composition: Al2O3
Hardness: 9
Refractive Index: 1.76 - 1.77
Specific Gravity: 4.00
Lustre: Vitreous.
Locations Where Found:
Sri-Lanka, Thailand, Madagascar, Pakistan, Australia.
Colours:
Blue, Pink, Yellow, Green.

Gemstone Pages...
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