Posts Tagged ‘ flame ’

Brown and Flame Stones

September 16, 2009
By precious stones

Brown and Flame-Coloured Stones Hardness. Specific Gravity. Andalusite     7-1/2 3.204 Diamond 10 3.502-3.564 Garnets (various) 6-1/2-7-1/2 3.40-4.50 Hyacinth (a form of Zircon), 7-1/2 4.70-4.88 Quartz (smoke coloured) 7 2.670 Tourmaline 7-1/4 3.100 Zircon (Hyacinth) 7-1/2 4.70-4.88
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