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Blue tourmaline
indicolite tourmaline
tourmaline facet rough
Tourmaline Blue Facet Rough 4.65ct
gemstone grading chart

Tourmaline Blue Facet Rough 4.65ct

Regular price
$47.20
Sale price
$47.20
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From the mines of Paprok in Afghanistan comes this stunning Indicolite Blue Tourmaline weighing in at 4.65ct.

14.4mm along the C axis.

4.91mm and 6.4mm on the A/B axis gives this stone ideal shape for faceting

This stone is SI clarity and will cut a VS clarity.

This stone does have a very small twin which will cleave off or trim down as you prefer, still leaving a very nice blocky shape to yield and good finished 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

Luster:                         Vitreous.

Birthstone:                 Libra

Associated Month:    October

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