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Product Type: Ruby - 23 Piece Gemstone Lot
4x1 Inches
" Ametrine is relatively rare compared to other gemstones and is mainly found in Bolivia
This is a strand of loose orange Baroque Pearls with an overall length of 41 cm (16 inches)
Biotite Mica Book | Black Crystal | 48.8 Grams | Ontario, Canada | SO24 Apatite Product Type: Ruby - 23This is a beautiful black Biotite crystal book from the Calcite Vein Dikes of the Grenville Geological Province Ontario, Canada. This biotite has classic crystal shape and attractive dark black coloration. This specimen is a great example of both. Biotite is rarely considered a valuable mineral specimen, but it can accompany other minerals and compliment them. In Bancroft, Ontario Biotite forms large crystals with green apatite and hornblende. Single
