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Tourmaline natural crystal
Weight: 7.2 g
Dimensions: 3.17 x 1.01 x 0.97 cm
Color: light green, upper side slightly pink
Country of origin: Afghanistan
You always buy the mineral shown in the photo!
Except for color and transparency, the whole group of tourmalines has the same properties.
Physical properties: Hardness 7–7.5, brittle, density 2.9–3.2 g / cm³, fission imperfect according to {1011}, shell fracture, uneven.
Optical properties: Color: various, depending on the variety. There are crystals that are multicolored in the transverse or longitudinal direction. Glassy gloss, transparency: transparent, translucent, opaque (according to the variety), white scratch with a color shade according to the color of the variety.
Tourmaline natural crystal
Weight: 7.2 g
Dimensions: 3.17 x 1.01 x 0.97 cm
Color: light green, upper side slightly pink
Country of origin: Afghanistan
You always buy the mineral shown in the photo!