Pogledaj sve fotografije (8)
10.30 CTS Australite flange TEKTITE RARE COLLECTOR PC RG-5992 Raregems
- SKU
- RG-5992
- Dimenzije (mm)
- 14.800 x 13.200 x 9.300mm
- Težina (cts)
- 10.300
- Treatment
- No Treatment
- Tip
- Specimen
- Boje
-
TEKTITE-COLLECTOR PC
WESTERN AUSTRALIA
TEKTITE FLANGE
PERFECT SHAPE
RAREFIND
SOUGHT AFTER COLLECTOR PC
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-5992
- Dimenzije (mm)
- 14.800 x 13.200 x 9.300 mm
- Težina (cts)
- 10.300
- Treatment
- No Treatment
- Tip
- Specimen
- Boje
-
TEKTITE-COLLECTOR PC
WESTERN AUSTRALIA
TEKTITE FLANGE
PERFECT SHAPE
RAREFIND
SOUGHT AFTER COLLECTOR PC
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 u Australia | Dostava u ostatak svijeta |
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Standard Shipping - Tracked | $19.00 / :dani dani | $30.00 / :dani dani |
:zemlja
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 / :dani dani | $40.00 / :dani dani |
:zemlja
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 / :dani dani | $30.00 / :dani dani |
Ostatak svijeta
DHL je snižen na $30.00 na narudžbe s 2 ili više artikala
|
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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
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Pozitivan
Beautiful stone! Thank you so much!
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Pozitivan
Paid and shipped - no feedback left after 100 days
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Pozitivan
Paid and shipped - no feedback left after 100 days