Opals
Gemstones
Jewelry
Coins
No Reserve Gemstones
No Reserve Opals
No Reserve Jewelry
No Reserve Coins
67.4 CTS A GRADE YELLOW PREHNITE CAB CG-1408
- SKU
- Dimensions (mm)
- 41.000 x 24.000 x 10.000mm
- Weight (cts)
- 67.400
- Type
- Faceted
- Colours
-
PREHNITE CABOCHON
BRIGHT LEMON YELLOW COLOUR
A GRADE HIGH CLARITY
PERFECT FOR SETTING IN JEWELRY
Prehnite is a phyllosilicate of calcium and aluminium with the formula: Ca2Al(AlSi3O10)(OH)2. Limited Fe3+ substitutes for aluminium in the structure. Prehnite crystallizes in the orthorhombic crystal system and most oftens forms as stalactitic or botryoidal aggregates, with only just the crests of small crystals showing any faces, which are almost always curved or composite. Very rarely will it form distinct, well individualized crystals showing a square-like cross-section, like those found at the Jeffrey Mine in Asbestos, Quebec, Canada. It is brittle with an uneven fracture and a vitreous to pearly lustre. Its hardness is 6-6.5, its specific gravity is 2.80-2.90 and its color varies from light green to yellow, but also colorless, blue or white. In April 2000, a rare orange Prehnite was discovered at the famous Kalahari Manganese Fields in South Africa. It is mostly translucent, and rarely transparent.
- SKU
- Dimensions (mm)
- 41.000 x 24.000 x 10.000 mm
- Weight (cts)
- 67.400
- Type
- Faceted
- Colours
-
PREHNITE CABOCHON
BRIGHT LEMON YELLOW COLOUR
A GRADE HIGH CLARITY
PERFECT FOR SETTING IN JEWELRY
Prehnite is a phyllosilicate of calcium and aluminium with the formula: Ca2Al(AlSi3O10)(OH)2. Limited Fe3+ substitutes for aluminium in the structure. Prehnite crystallizes in the orthorhombic crystal system and most oftens forms as stalactitic or botryoidal aggregates, with only just the crests of small crystals showing any faces, which are almost always curved or composite. Very rarely will it form distinct, well individualized crystals showing a square-like cross-section, like those found at the Jeffrey Mine in Asbestos, Quebec, Canada. It is brittle with an uneven fracture and a vitreous to pearly lustre. Its hardness is 6-6.5, its specific gravity is 2.80-2.90 and its color varies from light green to yellow, but also colorless, blue or white. In April 2000, a rare orange Prehnite was discovered at the famous Kalahari Manganese Fields in South Africa. It is mostly translucent, and rarely transparent.
| Shipping provider | Shipping to United States of America | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $30.00 / 7 days | $30.00 / 14 days |
|
United States of America
Standard Shipping - Tracked is discounted to $30.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $30.00 on orders with 2 or more items
|
||
| FedEx | $40.00 / 3 days | $40.00 / 7 days |
|
United States of America
FedEx is discounted to $40.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $40.00 on orders with 2 or more items
|
||
| DHL | $30.00 / 2 days | $30.00 / 14 days |
|
United States of America
DHL is discounted to $30.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $30.00 on orders with 2 or more items
|
||
-
Positivei got what i paid for, and at a reasonable price. not sure what else I could ask for
-
Positive
Gorgeous big stones. Perfectly matched.
-
Positive
Paid and shipped - no feedback left after 100 days
-
Positive
Paid and shipped - no feedback left after 100 days
-
Positive
Paid and shipped - no feedback left after 100 days
