21.51ct Bicolor Tourmaline With Excellent Luster And Fine Cutting Gemstone

1331

存貨單位
尺寸（毫米）: 16.400 x 14.940 x 9.720mm
重量 (cts): 21.510
Treatment: No Treatment
Clarity: VVS
顏色

Tourmaline ;
Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone can be found in a wide variety of colors. Wikipedia

Color: Green, Black, Pink, Blue, Red, Yellow, Purple, White, Orange, Grey, Brown

Luster: Vitreous

Associated month: October

Crystal system: Hexagonal crystal system

Hardness (Mohs hardness scale): 7 – 7.5

Transparency: Opaque, Transparent

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存貨單位
尺寸（毫米）: 16.400 x 14.940 x 9.720 mm
重量 (cts): 21.510
Treatment: No Treatment
Clarity: VVS
顏色

Color: Green, Black, Pink, Blue, Red, Yellow, Purple, White, Orange, Grey, Brown

Luster: Vitreous

Associated month: October

Crystal system: Hexagonal crystal system

Hardness (Mohs hardness scale): 7 – 7.5

Transparency: Opaque, Transparent

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