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3.26 CTS KORNERUPINE ROUGH (3 PCS) CRYSTALS [MGW3455]
- SKU
- Dimensioni (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- NO
- Colori
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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.
- SKU
- Dimensioni (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- NO
- Colori
-
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.
| Fornitore di spedizioni | Spedizione in :paese | Spedizione nel resto del mondo |
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| FedEx | $12.00 / : giorni giorni | $39.00 / : giorni giorni |
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| Registered Shipping | $9.00 / : giorni giorni | $16.00 / : giorni giorni |
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PositivoBeautiful agate piece , and as always fast efficient service from Sedagems
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Positivo
Nice
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Positivo
Gorgeous stones, very happy
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Positivo
Gorgeous stone, very happy
![22.9CTS VARASCITE 'SPIDER WEB' AUSTRALIA [MGW 4616]](https://liveplatforms-production.b-cdn.net/tenants/gr/uploads/images/490000-494999/490866/55236df10a48f.JPG?width=480&aspect_ratio=1001%3A1000)
