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The number of teeth on the index gear controls the type of symmetry you can cut into your stone
which makes it harder than some other classic diamond simulants (like lithium niobate and strontium titanate) but still soft for a gem
Dinosaur Bone: This one is a bit unusual for us
when doped with praseodymium instead you get this very odd multifluorescence: longwave UV gives a pale green
Dichroic Blue Yellow Moissanite Facet Rough Marked Letter:Rough, 16.8×15.4×11.2mm, 7.5g The number of teeth onThese are unusual dichroic yellow and blue moissanite facet rough. Each is labelled with its gram weight and letter in the photo and they can be purchased individually. This one is an odd one moissanite with striking dichroism! This is likely the result of a mistake during growth where the argon atmosphere was lost and atmospheric nitrogen snuck and an was able to color the crystal partway through growth, though it's also possibly an intentional
US$ 65.00
US$ 160.00
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US$ 65.00