Ethiopian opal, are some of the most translucent stones. Silica is basically glass made from nature which creates colors
Hardness | Country of origin | Size and shape | Price |
---|---|---|---|
7 1/2 | Brazil | 5 carats to 15 carats range, irregular shapes, no calibrations | $2 to $8 |
Tourmaline crystals with pink center and a green rim, or vice versa, are called watermelon tourmaline, these are product of Brazil.
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