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Obsidian is an extrusive rock that cooled very rapidly without forming crystals. As a result, obsidian has a smooth, shiny texture of a thick piece of glass.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoObsidian is a type of rock, so the texture would be very rough.
Wiki User
∙ 14y agoObsidian has a glassy texture.
Wiki User
∙ 15y agosmooth, glassy
Wiki User
∙ 13y agoYes it has a glassy texture
Wiki User
∙ 8y agoA glassy texture.
Wiki User
∙ 11y agoGlassy.
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What texture does obsidian have?
A glassy texture.
What rock group does obsidan belong to?
Obsidian falls under the group of Extrusive Volcanic Rock of very fine texture. Obsidian is generally called Volcanic Glass.
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 is obsidians grain shape?
Pure obsidian actually has a glassy texture (grain), with no discernible crystalline structure.
What is the same about granite and obsidian?
Obsidian and granite are both igneous rocks. Obsidian is of extrusive origin (which means the magma cooled quickly) and has a glassy texture. Granite is of intrusive origin (which means the magma cooled slowly) and is phaneritic, or coarse grained.y
What texture does obsidian have?
A glassy texture.
What is the texure of obsidian?
Obsidian is an igneous rock with a glassy texture. Its texture is also called hyaline, the Greek word for texture.
How does obsidian get its unusual texture?
The texture of a rock depends on the rate that it cools. Obsidian cools so quickly that no crystals can form, therefore giving it a glassy texture.
Why does obsidian have a glassy texture?
Obsidian has a glossy texture is because of how it is formed. When it solidifies, it does not crystallize due to the lava cooling too quickly.
Describe the texture of obsidian?
Obsidian is a hard, dark volcanic rock that is formed by the rapid solidification of lava. Its texture is glassy and shiny black.
What igneous rock has a smooth glass like texture?
Obsidian
What are rocks that have a glassy texture called?
Obsidian
Is obsidian natural gas?
Obsidian rock is simply cooled liquid magma or "lava". Obsidian rock is jet black with a very smooth texture and glossy appearance.
What igneous rock has no visible crystals?
Granite is a coarse grained igneous rock without Pyroxene.
How much inches high is obsidian?
Obsidian is not identified, classified, or described by height. It is described by its texture, fracture, hardness, and chemical composition.
Why is the texture of obsidian is best contain few or no minerals grains?
Obsidian cools so quickly the mineral grains do not have time to form.
What is the texture of the very finest grained rocks called?
vitreous or glassy (obsidian)
