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5

1.05 CTS KORNERUPINE ROUGH CRYSTALS [MGW3499]

SKU
Dimenzije (mm)
x x mm
Težina (cts)
Certified Gemstones
Ne
Tip
Specimen
Boje

MINERAL GEM WORLD

KORNERUPINE ROUGH CRYSTALS

This is a nautral untreated specimen of a rare Kornerupien.

Weight 1.05 cts app

Size 8 x 7 x 3 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.

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sedagems
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  • royrock
    royrock
    Pozitivan

    Beautiful agate piece , and as always fast efficient service from Sedagems

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Detalji dostave

dostava:
$16.00 21 days putem Registered Shipping
Brodovi iz:
Australia

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Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 370435
Počinje : 21st November 2024 06:00 pm PST
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