Crystallized Black Tourmaline in a 8x9cm box.
Natural crystals with faces.
Origin: China
Size: from 7 to 9 cm approx.
Weight: between 300 and 350 grams approx.
Mineral of the trigonal system belonging to the silicate group, with a complex chemical formula that allows multiple combinations of elements. Our specimens have well defined natural crystals, with visible faces and a vitreous lustre. Highly valued in jewellery and collecting for its diversity of colours and chromatic intensity in gem quality specimens.
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