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Obsidian is quickly cooled lava. When cooled slowly it forms crystals and quartz. Thus obsidian is an amorphous solid like other glasses and it melts over a range of temperatures at roughly the quartz melting point. 1650 C (+/- 75) http://en.wikipedia.org/wiki/Obsidian
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∙ 14y ago
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∙ 15y agoObsidian forms from cooling lava without crystal growth. Lava has a liquid temperature range of 700 °C to 1,200 °C (1,300 °F to 2,200 °F). I would assume that Obsidian would melt at those respective temperatures.
Sorry, if my answer isn't the best. However I couldn't find a definite answer on this one.
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∙ 9y agoRocks will melt at different temperatures because they are made with different materials. The minimum heat for melting rocks is 1,200 degrees Celsius.
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∙ 15y agoThey are exposed to temperatures above their melting point. An igneous rock can be placed in magma or can be blow torched in a science lab.
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∙ 8y agoit melts at 625 Celsius
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∙ 13y agobetween 940 C and 1080c
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∙ 11y ago2784
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Which region of the earth interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the earths interior does the heat increase to the point that rocks begin to melt?
asthenosphere
Which two factors affect the temperature that rocks melt at?
The two main factors that affect the temperature at which rocks melt are the composition of the rock and the pressure acting on it. Different minerals have different melting points, so the composition of the rock will determine its melting temperature. Additionally, pressure can increase or decrease the melting temperature of rocks, with higher pressure generally increasing melting temperature and lower pressure decreasing it.
What happen to the crust when the molten rocks move upward?
The crust melt's because the molten rock's are at a really high temperature.
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
Which region of the earth interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increases to the point that rocks can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
At what temperature do rocks melt?
At a temperature of about 1,000 degrees Celsius.
In which region of the Earth's interior does the heat increase to the point that rock can begin to melt?
In which region of the Earth's interior does the heat increase to the point that rocks can begin to melt?
In which region of the earths interior does the heat increase to the that rocks can begin to melt?
asthenosphere
What temperature does an ice cube begin to melt?
0 Celsius
Why don't rocks in earth's lower crust upper crust and mantle melt?
The rocks don't melt because they are under tremendous pressure. High pressure raises the temperature needed to melt something.
Rocks can melt without changing temperature when the pressure exerted on them is .?
Increase
In which region of the earths interior does the Heat increases to the point that rocks can begin to melt?
asthenosphere
In which region of the earths interior does the heat increase to the point that rocks can begin to melt?
asthenosphere
In which region of earths interior does the heat increase to the point that rocks can begin to melt?
asthenosphere
