From the mines of Paprok in Afghanistan comes this hefty Indicolite Blue Tourmaline weighing in at 11.65ct.
19.3mm along the C axis.
7.3mm and 7.7mm on the A/B axis gives this stone ideal shape for faceting
This stone is I clarity and will cut an I clarity stone.
While this stone is included, it has a very interesting colour play. Strong sea green blue with a purple centre will produce a good size finished cut stone.
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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