40 ct 100% Natural Untreated Tourmaline Pink Green Yellow Very pretty Specimens

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40 ct 100% Natural Untreated Tourmaline Pink Green Yellow Very pretty Specimens:
$5.99

$0.99 Free Gem Type: Tourmaline 　　　　 Formula: Na(Mg,Fe,Mn,Li,Al)3Al6［Si6O18］　 Specific gravity: 3.06 　　　　 Mohs scale hardness: 7-7.5 　　　　 Refractive index: nω=1.635–1.675, nε=1.610–1.650 　　　　　　　　　　　　　　　　　　　　 Dimension: 　　　　　　 As The Pictur e Sho w 　　 Weight: 　　　　　　 40 ct 8 g 　　　　　　　　 Quantity: 　 1 Lot 　　 Origin: 　 Brazil 　　 Clarity:「*1」　 VS 　　 Diaphaneity:「*2」　 Semi-Transparent 　 Luster:「*3」　 Vitreous 　　　　　　　　 Treatment: 　 None At All 　　