215.00 CTS SWIRL RHYOLITE ROUGH SLAB MEXICO [F4990]
- SKU
- 寸法(mm)
- x x mm
- 重さ (CT)
- Certified Gemstones
- いいえ
- タイプ
- Specimen
- 色
-
QUALITY ROUGH
SWIRL RHYOLITE
This is a natural rough slab showing some amazing natural patterns ready for polishing
Mined in mexico
Please note we have taken the photos with the stone wet.
Weight 215.00 cts app
Size 61 x 53 x 9 mm app
RHYOLITE
Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock, and consequently, outcrops of rhyolite may bear a resemblance to granite. Due to their high content of silica and low iron and magnesium contents, rhyolite melts are highly polymerized and form highly viscous lavas. They also occur as breccias or in volcanic plugs and dikes. Rhyolites that cool too quickly to grow crystals form a natural glass or vitrophyre, also called obsidian. Slower cooling forms microscopic crystals in the lava and results in textures such as flow foliations, spherulitic, nodular, and lithophysal structures. Some rhyolite is highly vesicular pumice. Many eruptions of rhyolite are highly explosive and the deposits may consist of fallout tephra/tuff or of ignimbrites.
- SKU
- 寸法(mm)
- x x mm
- 重さ (CT)
- Certified Gemstones
- いいえ
- タイプ
- Specimen
- 色
-
QUALITY ROUGH
SWIRL RHYOLITE
This is a natural rough slab showing some amazing natural patterns ready for polishing
Mined in mexico
Please note we have taken the photos with the stone wet.
Weight 215.00 cts app
Size 61 x 53 x 9 mm app
RHYOLITE
Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock, and consequently, outcrops of rhyolite may bear a resemblance to granite. Due to their high content of silica and low iron and magnesium contents, rhyolite melts are highly polymerized and form highly viscous lavas. They also occur as breccias or in volcanic plugs and dikes. Rhyolites that cool too quickly to grow crystals form a natural glass or vitrophyre, also called obsidian. Slower cooling forms microscopic crystals in the lava and results in textures such as flow foliations, spherulitic, nodular, and lithophysal structures. Some rhyolite is highly vesicular pumice. Many eruptions of rhyolite are highly explosive and the deposits may consist of fallout tephra/tuff or of ignimbrites.
配送業者 | 発送先:国 | その他の国への配送 |
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FedEx | $12.00 / :日日 | $39.00 / :日日 |
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $12.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $39.00 に割引されます
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||
Registered Shipping | $9.00 / :日日 | $16.00 / :日日 |
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $9.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $16.00 に割引されます
|
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ポジティブ
Beautiful agate piece , and as always fast efficient service from Sedagems
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ポジティブ
Gorgeous stones, very happy
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ポジティブ
Gorgeous stone, very happy