Tuesday, January 1, 2019

Sapphire



Sapphire
This sample along with the following the one following comes to us from Ratnapura, Sri Lanka.

Sapphire is a precious gemstone whose formula is Al2O3, and is usually blue but not always.  


Sapphire
Natural "fancy" sapphires also occur in yellow, purple, orange, and green. It is a variety of the mineral corundum and is also, like corundum, very hard, mohs scale 9.  IT is the third hardest mineral in the world behind diamond and moissanite.

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