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18.95 CTS QUARTZ WITH MICA EYE INCLUSIONS [ST7514]
- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- 顏色
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SEDA GEMS
QUARTZ WITH MICA
This is a natural untreated stone from Brazil howing stunning mica inclusions in it.
Also known as mica schst
Very well polished
Weight 18.95 cts app
Size 25 x 17 x 6 mm app
Quartz is the most common mineral on Earth. It is found in nearly every geological environment and is a component of almost every rock type. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks. It is also the most varied in terms of variety and color. Quartz is a 7 on the Mohs scale of hardness..
MICA-SCHIST, in petrology, a rock composed essentially of mica and quartz, and having a thin parallel-banded or foliated structure, with lamellae rich in mica alternating with others which are principally quartz. They split readily along the micaceous films, and have smooth or slightly uneven surfaces covered with lustrous plates of muscovite or biotite; the quartzose lamellae are often visible only when the specimens are looked at edgewise. Mica-schists are very common in regions of Archean rocks accompanying gneisses, crystalline limestones and other schists. Some have a flat banding yielding smooth slabs; others are crumpled or contorted with undulating foliation. Occasionally the quartz forms elliptical lenticles or "eyes." In some cases mica composes nearly the whole of the rock, in others quartz preponderates so that they approach quartz-schists and quartzites.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 澳洲 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| FedEx |
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| Registered Shipping |
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- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- 顏色
-
SEDA GEMS
QUARTZ WITH MICA
This is a natural untreated stone from Brazil howing stunning mica inclusions in it.
Also known as mica schst
Very well polished
Weight 18.95 cts app
Size 25 x 17 x 6 mm app
Quartz is the most common mineral on Earth. It is found in nearly every geological environment and is a component of almost every rock type. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks. It is also the most varied in terms of variety and color. Quartz is a 7 on the Mohs scale of hardness..
MICA-SCHIST, in petrology, a rock composed essentially of mica and quartz, and having a thin parallel-banded or foliated structure, with lamellae rich in mica alternating with others which are principally quartz. They split readily along the micaceous films, and have smooth or slightly uneven surfaces covered with lustrous plates of muscovite or biotite; the quartzose lamellae are often visible only when the specimens are looked at edgewise. Mica-schists are very common in regions of Archean rocks accompanying gneisses, crystalline limestones and other schists. Some have a flat banding yielding smooth slabs; others are crumpled or contorted with undulating foliation. Occasionally the quartz forms elliptical lenticles or "eyes." In some cases mica composes nearly the whole of the rock, in others quartz preponderates so that they approach quartz-schists and quartzites.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 澳洲 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| FedEx |
|
|
|
|
| Registered Shipping |
|
|
|
|
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積極的Beautiful piece/
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積極的Nice piece of jade.
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積極的Will make a beautiful necklace.
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積極的Nice colors.
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積極的Great looking piece.
為什麼用戶出價高於自己?
出價時,這是一個人願意為產品出價的最高金額。然後,我們的系統將自動代表投標人出價,逐步將出價提高到最高價,以保持其最高出價者的地位。
當出現「自動出價」圖示時,表示我們的系統正在根據投標者的最高出價主動為其出價。這可能看起來好像出價者出價高於自己,但這只是系統更新出價以反映出價者最高限額的結果。