Sapphires – Rough to Polished Gem
Rough Water Worn Sapphires Sapphire, one of the big four gemstones is a variety of Corundum which also includes the variety Ruby. Sapphire belongs to the trigonal system, one of seven crystal systems and are identifiable in the rough in a barrel form or spindle shaped hexagonal pyramid which explains why some polished sapphires are […]
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