What's the Mohs scale hardness and specific gravity of a treated 4mm round London Blue Topaz?
London Blue Topaz, Round, 4mm, Treated
Topaz
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Open Feb 23, 2024 - 04:51 PM
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Feb 23, 2024 - 04:51 PM
The London Blue Topaz, a treated gem, exhibits a hardness of 8 on the Mohs scale, demonstrating its exceptional durability. Its specific gravity ranges from 3.53 to 3.57, underlining the substantial feel of this blue topaz.
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