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RHYOLITE SPECIMEN -POLISHED 73 GRAMS [MX948 ]
- SKU
- 寸法(mm)
- x x mm
- 重さ (CT)
- 色
-
RHYOLITE FROM MT MAY
QUEENSLAND- RAINFOREST JASPER
NATURAL
POLISHED ONE SIDE
WEIGHT 73 GRAMS APP
SIZE 96 X 70 X 6 MM APP
Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock, and consequently, outcroppings of it often 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 can 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 or of ignimbrites.
- SKU
- 寸法(mm)
- x x mm
- 重さ (CT)
- 色
-
RHYOLITE FROM MT MAY
QUEENSLAND- RAINFOREST JASPER
NATURAL
POLISHED ONE SIDE
WEIGHT 73 GRAMS APP
SIZE 96 X 70 X 6 MM APP
Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock, and consequently, outcroppings of it often 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 can 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 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
|
||
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
Paid and shipped - no feedback left after 60 days
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ポジティブ
This stone is exactly what showed up at my house only more bright. very pretty and quick shipping
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ポジティブ
nice but challenging
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ポジティブ
A ten-out-of-ten from me. You run a fine shop! Thank you very much
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