0
What else can I help you with?
Does obsidian have a large grain size or a small grain?
Obsidian has a small grain size due to its volcanic origin, which means that it cools quickly and does not have time to form large crystals. It is typically fine-grained and exhibits a glassy appearance.
Igneous rock that cools very quickly when it forms may have a texture that is what?
A texture characterized by tiny mineral grains or a glassy appearance.
Igneous rock that cools very quickly when it forms may have a texture that is?
Igneous rock that cools quickly may have a fine-grained texture, with small mineral crystals that are not easily visible to the naked eye. Examples include basalt and rhyolite.
Does obsidian a glassy rock have a large grain size or a small grain size?
Actually, obsidian doesn't have grains at all. Technically obsidian is a glass, which means it has no internal structure. When geologists refer the the grain size of a rock, they mean how big the crystals that make it up are. Since obsidian has no crystals, it therefore has no grain size.
What is the grain size of an extrusive igneous?
The grain size of an extrusive igneous rock is typically fine-grained to aphanitic, meaning the individual mineral grains are not visible to the naked eye. This rapid cooling at the Earth's surface prevents large crystals from forming, resulting in a fine texture.
Does pyrite have no visible grain?
no it has visible grain but i could be not correct.
What is obsidian's grain size?
there is no visible grain size
Is starch grain visible under microscope?
yes
Are grains in coarse- grain rock microscopic?
No. They are large and visible to the unaided eye.
What is the grain size of fine sand?
The grain size of fine sand typically ranges from 0.075 to 0.425 millimeters in diameter.
What does phaneritic mean?
Phaneritic refers to igneous rock grain size,which is visible with the naked eye.
Does obsidian have a large grain size or a small grain?
Obsidian has a small grain size due to its volcanic origin, which means that it cools quickly and does not have time to form large crystals. It is typically fine-grained and exhibits a glassy appearance.
Igneous rock that cools very quickly when it forms may have a texture that is .?
Smooth and shiny with no visible grain.
How can you determine if a igneous rock has had an intrusive or extrusive origin?
== Grain size. Most intrusive igneous rocks will have visible crystals. Crystals in most extrusive igneous rocks are not easily visible.
What are fat wrinkles in leather?
Wrinkles in the grain of leather caused by fat deposits in the animal that create beauty in the leather. Fat wrinkles are not visible in imitation grain leather Love drew xoxo
Type of crystal grain that forms when molten rocks cool slowly?
Visible or coarse.
Can you identify hilum or raphe in corn seed?
No, they are not visible on a corn grain because these two structures are located inside the ovary.
