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How to Identify a Raw Ruby?
Discover how to identify a raw ruby using six hands-on tests. Learn to check color zoning, spot natural "silk" inclusions, perform a hardness test, and use UV light to confirm your rough, red stone is the real, fiery gem.
How to Identify Rough Sapphire?
Curious "how to identify rough sapphire?" Learn key techniques! Discover the typical crystal forms, perform hardness tests, and examine color, luster, and clarity for tell-tale signs. This guide helps prospectors and enthusiasts spot potential sapphire in its natural state.