0
The fact that obsidian IS glass. It is a naturally occurring form of volcanic glass. Different impurities give it different colors, usually black or shades of gray.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What is the size of grains in pumice?
Pumice normally doesn't have any grains at all. It would be very unusual for it to have grains. Just like Obsidian, Pumice is cooled too fast to have any grains in it. One of the biggest differences between them is that Pumice is cooled with pockets of air while Obsidian has a glassy look.
Is obsidian rare or very common?
Obsidian (volcanic glass) is unstable and it de-vitrifies (crystallizes) with time, it is also only produced from viscous, acidic lavas. You would therefore look for it in recently produced lavas in continental volcanoes. Thus while obsidian is not uncommon, it does not last very long geologically. Where it is found it is found in large amounts.
What is the hardest rock in the world besides diamond?
The hardEST is a diamond, and some other hard ones are corundum and topaz. If you look up Moh's hardness scale, it will show you some.
How do you calculate nominal breaking strength of nylon rope?
Look at boatsafe.com. It explains in detail the calculations for different rope types and sizes
What does obsidian look like?
Quartz can be difficult to distinguish by looks because of its many varieties. It is usually colorless, white or gray but uncommon varieties occur in all colors. It can be transparent to translucent, and has a greasy luster. It has no cleavage and forms hexagonal prism and pyramids.Quartz can have several different colors, including clear, pink, red, black, white and yellow. It is a form of glass and may take the shape of large crystals.
Is obsidian rapidly cooling?
Yes that is why it makes that glassy look to it.
Why do obsidian rocks look dark?
because an obsidian rock has low silica
What does a horses eye look like?
It sometimes has a blue glassy look to it!
What does a blind horses eye look like?
It sometimes has a blue glassy look to it!
What is the difference between basalt granite and obsidian rocks?
i think obsidian is a supercooled liquid of a magma.Its look like a glassy matter because is crystallised very faster than basalt and granite. Granite cools very slowly that's why it shows coarser grains and it crystallizes at very depth whereas basalt crystallizes at surface that's why it shows medium grain size.
What is the size of grains in pumice?
Pumice normally doesn't have any grains at all. It would be very unusual for it to have grains. Just like Obsidian, Pumice is cooled too fast to have any grains in it. One of the biggest differences between them is that Pumice is cooled with pockets of air while Obsidian has a glassy look.
What does an obsidian dragon look like as a teen?
fart pants like you
What do an obsidian rock look like?
Obsidian is a beautiful rock. It's description is pretty simple, it is a rock that formed out of cooled lava, and is black in color.
What best explains why some people are more committed to saving for retirement than other people?
Different people look at future risks differently
Is obsidian rare or very common?
Obsidian (volcanic glass) is unstable and it de-vitrifies (crystallizes) with time, it is also only produced from viscous, acidic lavas. You would therefore look for it in recently produced lavas in continental volcanoes. Thus while obsidian is not uncommon, it does not last very long geologically. Where it is found it is found in large amounts.
What is the following statements best explains why some people are more committed to saving for retirement than other people?
Diffrent people look at future risks diffrently ...
What are the ratings and certificates for Clarissa Explains It All - 1991 A New Look 2-12?
Clarissa Explains It All - 1991 A New Look 2-12 is rated/received certificates of: Argentina:Atp
