Opals
Gemstones
Jewelry
Coins
1.05 CTS KORNERUPINE ROUGH CRYSTALS [MGW3499]
- SKU
- Dimensions (mm)
- x x mm
- Weight (cts)
- Certified Gemstones
- No
- Type
- Specimen
- Colours
-
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.
| Shipping provider | Shipping to Australia | Shipping to rest of world | Combined Shipping (Australia) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| FedEx |
|
|
|
|
| Registered Shipping |
|
|
|
|
- SKU
- Dimensions (mm)
- x x mm
- Weight (cts)
- Certified Gemstones
- No
- Type
- Specimen
- Colours
-
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.
| Shipping provider | Shipping to Australia | Shipping to rest of world | Combined Shipping (Australia) | Combined Shipping (rest of the world) |
|---|---|---|---|---|
| FedEx |
|
|
|
|
| Registered Shipping |
|
|
|
|
![1.05 CTS KORNERUPINE ROUGH CRYSTALS [MGW3499]](https://liveplatforms-production.b-cdn.net/tenants/gr/uploads/stores/ipha4mneys1w7gnr.png)
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and g....
-
PositiveNice ruby-sapphire stones, good pictures.
-
Positive
Everything was Awesome! Thank you so much for everything! It's always an absolute pleasure buying from you, and will be doing it again soon. Take care and all the best for the new year!
-
Positive
The Pendant is fantastic!
-
Positive
Absolutely smashing books, the opals are magnificent! Thank you so much for everything, will be buying from you again soon. Thank you, again!
-
Positive
The Pendant is breathtaking! Thanks!
