Opals
Gemstones
Jewelry
Coins
您尚未參與本次拍賣。
1.10 Carats Tantalite Gemstone
- 存貨單位
- 尺寸（毫米）
- 5.650 x 3.510 x 2.300mm
- 重量 (cts)
- 1.100
- 類型
- Faceted
- 顏色
-
mineral group tantalite [(Fe, Mn)Ta2O6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal. It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides. However, tantalite has a much greater specific gravity than columbite (8.0+ compared to columbite's 5.2).[3] Iron-rich tantalite is the mineral tantalite-(Fe) or ferrotantalite and manganese-rich is tantalite-(Mn) or manganotantalite.
- 存貨單位
- 尺寸（毫米）
- 5.650 x 3.510 x 2.300 mm
- 重量 (cts)
- 1.100
- 類型
- Faceted
- 顏色
-
mineral group tantalite [(Fe, Mn)Ta2O6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal. It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides. However, tantalite has a much greater specific gravity than columbite (8.0+ compared to columbite's 5.2).[3] Iron-rich tantalite is the mineral tantalite-(Fe) or ferrotantalite and manganese-rich is tantalite-(Mn) or manganotantalite.
| 運輸商 | 運送至：國家 | 運送到世界其他地區 |
|---|---|---|
| Standard Shipping - Tracked | $18.00 / ：幾天天 | $18.00 / ：幾天天 |
|
：國家
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $22.00
世界其他地區
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $22.00
|
||
| DHL | $28.00 / ：幾天天 | $28.00 / ：幾天天 |
|
：國家
DHL 對包含 2 或更多商品的訂單折扣為 $38.00
世界其他地區
DHL 對包含 2 或更多商品的訂單折扣為 $38.00
|
||
-
積極的Very nice tantalite and a much welcome addition to my hobby-collection. Thank you very much!
-
積極的
Very nice
-
積極的
Beautiful stone! Thank you!
-
積極的
Beautiful stone! Thank you!
-
積極的
Lovely stone. Received with thanks.
-
積極的
Stunning fire, heavy on the red and green. Makes me happy just looking at it.
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。
