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Beryl:

Beryl occurs in a diversity of colors including green, yellow, greenish-yellow, blue to blue-green, red, colorless and also pink. There are wide references to beryl as a gemstone in folk lore.

 

Bloodstone:

Bloodstone is soft green jasper stippled with red spots from iron oxide. A type of chalcedony it is also referred as Heliotrope. Bloodstone is a comparatively soft stone and is one of the ancient birthstones for February or March.

 

Brass:

Brass is an alloy naturally of 60% copper and 40% zinc.

 

Bronze:

Bronze is an alloy of at slightest 60% copper and tin or other metals.