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This is one of my largest gems so far
a single crystal made from strontium aluminate
1x motor shim kit
though it's also possibly an intentional dopant (color in moissanite is complicated in a similar way to diamond)
This is a special RetroHex pixel cut I designed and am testing out
Laser Cobalt Spinel Vivid Blue Facet Rough Lab Created Crystals Piece:Thin Triangle, 9.3×8.5×4.5mm, 0.56g This is one of myThese are Czochralski pulled cobalt spinel grown for use in lasers. Each can be purchased individually. This is cobalt spinel, one of the most purely colored lab created crystals! While it is sometimes found in nature as a very rare and prized gemstone, cobalt spinel is also valuable in industry. It can act as a q switch in lasers, transforming a continuous firing laser into a powerful pulsed laser which releases its energy in discrete bursts. It has