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9.75 CTS Australite flange TEKTITE RG-5990 Raregems
- SKU
- RG-5990
- Dimenzije (mm)
- 16.000 x 13.100 x 7.500mm
- Težina (cts)
- 9.750
- Treatment
- No Treatment
- Tip
- Specimen
- Boje
-
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-5990
- Dimenzije (mm)
- 16.000 x 13.100 x 7.500 mm
- Težina (cts)
- 9.750
- Treatment
- No Treatment
- Tip
- Specimen
- Boje
-
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!)
| Pružatelj usluge dostave | Dostava Australia | Dostava u ostatak svijeta |
|---|---|---|
| Standard Shipping - Tracked | $19.00 / 7 | $30.00 / 14 |
|
Australia
Standard Shipping - Tracked je snižen na $19.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Standard Shipping - Tracked je snižen na $30.00 na narudžbe s 2 ili više artikala
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| FedEx | $39.00 / 4 | $40.00 / 4 |
|
Australia
FedEx je snižen na $39.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $40.00 na narudžbe s 2 ili više artikala
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| DHL | $19.00 / 2 | $30.00 / 14 |
|
Ostatak svijeta
DHL je snižen na $30.00 na narudžbe s 2 ili više artikala
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PozitivanJust 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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Pozitivan
Great piece of emerald. I have already faceted a 2.5 carat gem from it. Thankyou
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Pozitivan
Great colour change. Thankyou
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Pozitivan
Much nicer in person than in the photo. I am happy to include these into my gemstone family!
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Pozitivan
Beautiful gemstone
