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9.50 CTS Australite flange TEKTITE RG-5993 Raregems
- SKU
- RG-5993
- Dimensioni (mm)
- 15.000 x 13.200 x 8.700mm
- Peso (cts)
- 9.498
- Treatment
- No Treatment
- Tipo
- Specimen
- Colori
-
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-5993
- Dimensioni (mm)
- 15.000 x 13.200 x 8.700 mm
- Peso (cts)
- 9.498
- Treatment
- No Treatment
- Tipo
- Specimen
- Colori
-
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!)
| Fornitore di spedizioni | Spedizione a Australia | Spedizione nel resto del mondo |
|---|---|---|
| Standard Shipping - Tracked | $19.00 / 7 giorni | $30.00 / 14 giorni |
|
Australia
Standard Shipping - Tracked è scontato a $19.00 sugli ordini con 2 o più articoli
Resto del mondo
Standard Shipping - Tracked è scontato a $30.00 sugli ordini con 2 o più articoli
|
||
| FedEx | $39.00 / 4 giorni | $40.00 / 4 giorni |
|
Australia
FedEx è scontato a $39.00 sugli ordini con 2 o più articoli
Resto del mondo
FedEx è scontato a $40.00 sugli ordini con 2 o più articoli
|
||
| DHL | $19.00 / 2 giorni | $30.00 / 14 giorni |
|
Resto del mondo
DHL è scontato a $30.00 sugli ordini con 2 o più articoli
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PositivoI am a super happy customer with these beautiful rare turquoise gems. Accurate description, shipping was fast, just a little delivery issues here in my local city. otherwise very happy customer.
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Positivo
Just 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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Positivo
Great piece of emerald. I have already faceted a 2.5 carat gem from it. Thankyou
