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spinelA precious stone found in various colours, usually shades of red, blue, green, yellow, brown or black. Transparent red spinels are called spinel-rubies or balas-rubies and, in ancient times, were often confused with true rubies. |
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spinelA precious stone found in various colours, usually shades of red, blue, green, yellow, brown or black. Transparent red spinels are called spinel-rubies or balas-rubies and, in ancient times, were often confused with true rubies. |
