From the mines of Paprok in Afghanistan are these beautiful natural tourmaline gemstone crystals.
1 lot of 104 carats. ($1.50/ct)
Colour: Green, blue, pink, yellow, red, purple,orange.
Crystal System: Hexagonal crystal system
Mineral Family: Tourmaline.
Chemical Formula: Al6B3Fe3H10NaO31Si6
Hardness (Mohs): 7-7.5
Specific Gravity: 3.02-3.26
Refractive Index: 1.616-1.65
Associated Month: October
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