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Black Tourmaline (unpolished) Size: up to 5g
Rough black tourmaline pieces. These are sold individually.
Black Tourmaline (also known as Schorl) is a complex sodium iron aluminium boro-silicate hydroxide in the Tourmaline group found in granites and granitic pegmatites, high temperature hydrothermal veins and metamorphic rocks. Schorl is a black Tourmaline, the most common, and occurs as inclusions within other crystals, such as Quartz.
Please note: The items pictured are an example from our stock... you might not be sent one that is pictured.
Size details are:
extra small = up to 25g; small = up to 50g; medium = up to 100g; large = up to 150g; extra large up to 200g
Weight is the unpacked weight of the item
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