您尚未參與本次拍賣。
Beautiful piece 1.45 Ct Natural Emerald From Swat Mined
- 存貨單位
- 尺寸(毫米)
- 8.000 x 5.200 x 4.480mm
- 重量 (cts)
- 1.450
- Treatment
- No Treatment
- Shape
- Emerald
- 類型
- Faceted
- Clarity
- SI
- 顏色
-
Zambia is considered the world’s second most important source of emeralds by value (after Colombia). The deposits are located near the Kafubu River in the Ndola Rural Restricted Area. Emeralds have been known from this region since 1928, but significant commercial production began only in the 1970s. As of mid-2004, most of the emeralds were being mined from large open- pit operations at the Kagem, Grizzly, and Chantete concessions. Economic emerald mineralization is confined almost entirely to phlogopite reaction zones adjacent to Be-bearing quartz-tourmaline veins that metasomatically altered Cr-bearing metabasite host rocks. Nearly all of the rough is cut in India and Israel. Zambian emeralds have relatively high R.I. and S.G. values, with inclusions typ- ically consisting of partially healed fissures, as well as actinolite, phlogopite, dravite, fluorapatite, magnetite, and hematite. They contain moderate amounts of Cr, Mg, and Na, moderate-to-high Fe contents, and relatively high Cs and Li. Although many features of Zambian emeralds are compara- ble to those from other commercially important localities, in many cases they may be separated by a combination of their physical properties, microscopic characteristics, and chemical composition.
- 存貨單位
- 尺寸(毫米)
- 8.000 x 5.200 x 4.480 mm
- 重量 (cts)
- 1.450
- Treatment
- No Treatment
- Shape
- Emerald
- 類型
- Faceted
- Clarity
- SI
- 顏色
-
Zambia is considered the world’s second most important source of emeralds by value (after Colombia). The deposits are located near the Kafubu River in the Ndola Rural Restricted Area. Emeralds have been known from this region since 1928, but significant commercial production began only in the 1970s. As of mid-2004, most of the emeralds were being mined from large open- pit operations at the Kagem, Grizzly, and Chantete concessions. Economic emerald mineralization is confined almost entirely to phlogopite reaction zones adjacent to Be-bearing quartz-tourmaline veins that metasomatically altered Cr-bearing metabasite host rocks. Nearly all of the rough is cut in India and Israel. Zambian emeralds have relatively high R.I. and S.G. values, with inclusions typ- ically consisting of partially healed fissures, as well as actinolite, phlogopite, dravite, fluorapatite, magnetite, and hematite. They contain moderate amounts of Cr, Mg, and Na, moderate-to-high Fe contents, and relatively high Cs and Li. Although many features of Zambian emeralds are compara- ble to those from other commercially important localities, in many cases they may be separated by a combination of their physical properties, microscopic characteristics, and chemical composition.
運輸商 | 運送至:國家 | 運送到世界其他地區 |
---|---|---|
Standard Shipping - Tracked | $8.00 / :幾天天 | $15.00 / :幾天天 |
:國家
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $10.00
世界其他地區
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $20.00
|
||
FedEx | $35.00 / :幾天天 | $35.00 / :幾天天 |
:國家
FedEx 對包含 2 或更多商品的訂單折扣為 $35.00
世界其他地區
FedEx 對包含 2 或更多商品的訂單折扣為 $40.00
|
-
消極的
Seller has used strong filter on the seller image. What I have received is not as vivid red as seller images shown. Very disappointed. Wont consider this seller anymore.
為什麼用戶出價高於自己?
出價時,這是用戶願意為產品出價的最高金額。然後,我們的系統將代表該用戶自動出價,逐步提高出價以保持其作為最高出價者的地位,直至達到指定的最高價。
當出現“自動出價”圖標時,表示我們的系統正在根據用戶的最高出價主動為用戶出價。這可能看起來好像用戶出價高於自己,但這只是系統更新出價以反映用戶最高限額的結果。