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12.25 CTS Australite flange TEKTITE RG-5991 Raregems
- SKU
- RG-5991
- Dimensions (mm)
- 16.400 x 15.700 x 9.600mm
- Weight (cts)
- 12.250
- Treatment
- No Treatment
- Type
- Specimen
- Colours
-
TEKTITE-COLLECTOR PC
WESTERN AUSTRALIA
TEKTITE FLANGE
PERFECT SHAPE
THE COME IN VARIOUS SHAPES AND SIZES SOME BEING VERY RARE
the original body (a sphere in this case) is interpreted to be solid or very close to solidification by re-entry stage. As the sphere re-enters it ablates and spalls. Spalling results in characteristic core shapes. Once ablation of material has crossed the equatorial margin of the specimen, a flange may begin to form. This leads to formation of ‘button’-type tektites. Further spalling may result in loss of the flange and creation of a lens. In larger specimens (>6g), which are less thermodynamically stable, the loss of the flange and creation of a core is inevitable. The flange may reform with further spalling resulting in conical core morphologies. If the button continues to ablate then end-members such as plates or bowls may form. Ablation, spalling and flange formation combine to produce unique tektite forms
FOR FUTHER READING
Cleverly, W. H. 1986. Australites from Hampton Hill Station, Western Australia. Journal of the Royal Society of Western Australia, Vol. 68, Part 4, p. 81-93.
McNamara, K. and Bevan, A. 1985 (2nd (revised) edition, 1991). Tektites. Western Australian Museum. pp. 28. (Currently in print!)
- SKU
- RG-5991
- Dimensions (mm)
- 16.400 x 15.700 x 9.600 mm
- Weight (cts)
- 12.250
- Treatment
- No Treatment
- Type
- Specimen
- Colours
-
TEKTITE-COLLECTOR PC
WESTERN AUSTRALIA
TEKTITE FLANGE
PERFECT SHAPE
THE COME IN VARIOUS SHAPES AND SIZES SOME BEING VERY RARE
the original body (a sphere in this case) is interpreted to be solid or very close to solidification by re-entry stage. As the sphere re-enters it ablates and spalls. Spalling results in characteristic core shapes. Once ablation of material has crossed the equatorial margin of the specimen, a flange may begin to form. This leads to formation of ‘button’-type tektites. Further spalling may result in loss of the flange and creation of a lens. In larger specimens (>6g), which are less thermodynamically stable, the loss of the flange and creation of a core is inevitable. The flange may reform with further spalling resulting in conical core morphologies. If the button continues to ablate then end-members such as plates or bowls may form. Ablation, spalling and flange formation combine to produce unique tektite forms
FOR FUTHER READING
Cleverly, W. H. 1986. Australites from Hampton Hill Station, Western Australia. Journal of the Royal Society of Western Australia, Vol. 68, Part 4, p. 81-93.
McNamara, K. and Bevan, A. 1985 (2nd (revised) edition, 1991). Tektites. Western Australian Museum. pp. 28. (Currently in print!)
| Shipping provider | Shipping to Australia | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $19.00 / 7 days | $30.00 / 14 days |
|
Australia
Standard Shipping - Tracked is discounted to $19.00 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 | $39.00 / 4 days | $40.00 / 4 days |
|
Australia
FedEx is discounted to $39.00 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 | $19.00 / 2 days | $30.00 / 14 days |
|
Rest of the world
DHL is discounted to $30.00 on orders with 2 or more items
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PositiveJust received my Ruby it’s a cute little thing. I believe my sister-in-law will like it took a minute to get here to the states, but I am happy with my purchase would buy from you again
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Positive
Great piece of emerald. I have already faceted a 2.5 carat gem from it. Thankyou
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Positive
Great colour change. Thankyou
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Positive
Much nicer in person than in the photo. I am happy to include these into my gemstone family!
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Positive
Beautiful gemstone
