0
Obsidian.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is a smooth glassy black igneous rock?
Volcanic glass or obsidian.
What igneous rock has a smooth glass like texture?
Obsidian
What is an extrusive igneous rock that is actually glass?
One type of glassy igneous rock is obsidian, which is black and glass-like. Any type of igneous rock that is glassy would be a extrusive rock, which means it was formed outside the earths crust and cooled quickly, making for a fine grain and small crystals. hope this helps
What is a mixture of minerals mineraloids glass or organic matter?
A mixture of minerals, mineraloids, glass, or organic matter called rock. The rock cycle is the model showing the three types of rocks and how they are formed.
What is a black volcanic rock with small crystals?
Obsidian volcanic glass formed by quenching of magma. It is typically black, smooth and has a glassy to vitreous luster.
What rock is called black glass?
Obsidian.
What collor is obsidian rock?
shiny black. if it is cut thin enough, it looks like gray glass because you can see through it.
Can obsidian be bouncy?
I doubt it. Obsidian is a very hard, glass-like black rock that can be split to give a very sharp cutting edge.
What is the darkest igneous rock?
Obsidian is black volcanic glass, and is extremely dark.
What is a smooth glassy black igneous rock?
Volcanic glass or obsidian.
What rock looks like smooth glass?
Igneoys
Is obsidian a sedimentary rock igneous rock or a metamorphic rock?
obsidian is an igneous rock, it is not formed from sediment, or a rock going under heat and pressure for the second time it is formed when a volcano erupts and it cools very quickly giving it a smooth glossy surface like glass.
What igneous rock has a smooth glass like texture?
Obsidian
What is an extrusive igneous rock that is actually glass?
One type of glassy igneous rock is obsidian, which is black and glass-like. Any type of igneous rock that is glassy would be a extrusive rock, which means it was formed outside the earths crust and cooled quickly, making for a fine grain and small crystals. hope this helps
Why is The texture of obsidian is best described as glassy?
I can break like glass (fracture) and it looks like black glass and can be sharp
What type of rock is black all the way through non magnetic and non flamable?
Basalt is on of the many rocks that is black, obsidian (a volcanic glass) is another.
What is the difference between rockwool and glass wool?
rock wool is made out of rock and glass wool is made out of glass
