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Focal, ruby in kyanite (stabilized), 40mm round donut, B grade, Mohs hardness 9 and 4. Sold individually.
Item Number: H20-A1247NB
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Ruby in kyanite (also called ruby in apatite) is the trade name for a distinctive gemstone mined in Brazil. It is an alluring color combination of ruby along with a variety of blue (kyanite), green (apatite) and grey hues. This gemstone material is porous and has a low Mohs hardness, so it is stabilized using a colorless resin to improve its appearance and durability.
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