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Old 10th February 2018, 12:33 AM   #16
kai
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Join Date: Apr 2005
Posts: 2,158
Question

Hello Jean,

Quote:
The cabochon stones may be from black obsidian (volcano glass) which is used in Indonesia AFAIK but they are not suitable for a traditional Balinese selut indeed.

Don't these look like low-quality black sapphires? (Basically with irregular layers of needles inside rather than clear or star sapphires?)

Regards,
Kai
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