3.26 CTS KORNERUPINE ROUGH (3 PCS) CRYSTALS [MGW3455]

8153

存货单位
尺寸（毫米）: x x mm
重量 (cts)
Certified Gemstones: 不
颜色

MINERAL GEM WORLD

KORNERUPINE ROUGH CRYSTALS

This is a nautral untreated specimen of a rare Kornerupien.

Weight 3.26 cts app

Size 8 x 5 x 4 mm app

Kornerupine is a rare boro-silicate mineral. It crystallizes in the orthorhombic - dipyramidal crystal system as brown, green, yellow to colorless slender tourmaline like prisms or in massive fibrous forms. It has a Mohs hardness of 7 and a specific gravity of 3.3 to 3.34. Its indices of refraction are nα=1.660 - 1.671, nβ=1.673 - 1.683 and nγ=1.674 - 1.684.

It occurs in boron-rich volcanic and sedimentary rocks which have undergone high grade metamorphism. It is also found in metamorphosedanorthosite complexes.

存货单位
尺寸（毫米）: x x mm
重量 (cts)
Certified Gemstones: 不
颜色

MINERAL GEM WORLD

KORNERUPINE ROUGH CRYSTALS

This is a nautral untreated specimen of a rare Kornerupien.

Weight 3.26 cts app

Size 8 x 5 x 4 mm app

It occurs in boron-rich volcanic and sedimentary rocks which have undergone high grade metamorphism. It is also found in metamorphosedanorthosite complexes.

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