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$1,580.00 USD
預計建議零售價:rrp
1851
0

7.90 CTS super rare Australite flange TEKTITE RG-5994 Raregems

存貨單位
RG-5994
尺寸(毫米)
14.400 x 13.300 x 7.600mm
重量 (cts)
7.900
Treatment
No Treatment
類型
Specimen
顏色

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!)

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raregems
raregems
raregems, all rough
:城市,國家
已驗證
:總反饋

  • fireflyz
    fireflyz
    積極的

    Beautiful stone! Thank you so much!

  • limpdaddy
    limpdaddy
    積極的

    Thanks so much. It was easy

  • tecox2
    tecox2
    積極的

    Very nice stone lots of color

  • guest344201
    guest344201
    積極的

    Paid and shipped - no feedback left after 100 days

40.00%
優惠券代碼 thanksgiving
有效期至
1st Dec 2024

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$30.00 :通過 Standard Shipping - Tracked 計算天數
發貨自:
Australia

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  • stripe
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概述

列表類型 : Standard
產品編號 : 2292395
開始 : 22nd October 2024 10:20 pm PDT
* 所有價格均以:貨幣為單位