This is a stunning display stone of Strontium Titanate aka "Fabulite". This was a very popular synthetic during the late 50's and 60's. It is a soft stone with a hardness of 5.5 on the Moh's scale. However, it has a very high refractive index of 2.41.... This is...
Set of 3 pieces of Titanium doped Sapphire (Ti:Al 2 O 3 ) Beautiful deep pink color... in princess cut 11.96mm x 11.96mm (+/- 0,01mm varience per stone).... This is pulled material (from US produced crystal material) without stress as with flame fusion products.... T.W...
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