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streak is a property of a mineral not of a rock...
obisidian is a glassyrock formed when magma is get in contact with water.
Wiki User
∙ 10y ago
Obsidian is a type of volcanic glass that forms when molten lava cools rapidly. It typically appears black, but streaks of other colors, such as red, brown, or green, can be present within the rock due to impurities.
Wiki User
∙ 9y agothe streak is white
Wiki User
∙ 12y agothe streak is purple
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What kind of streak do obsidians have?
Obsidian typically exhibits a streak that is white to very light brown in color.
If you were to get a plate then scratch it with an obsidian what color is the streak that is left?
The streak left by scratching a plate with obsidian would appear as a dark gray to black color. Obsidian is a naturally occurring volcanic glass known for its sharp edges and dark appearance.
What igneous rock has no visible crystals?
Obsidian is an igneous rock that has no visible crystals due to its rapid cooling process, which prevents crystal formation. It is often dark in color and has a glassy appearance.
How do you find the streak of a rock?
To find the streak of a rock, you can rub the rock against an unglazed white porcelain tile to observe the color of the powder left behind. The color of the streak can help identify the minerals present in the rock.
What is the definition of streak of rock?
rock streak is the powered form of a mineral.
What is obsidian's streak?
its streak is white.
What is obisidian's streak?
Obsidian, although not a true mineral, should exhibit a white streak.
What color is obsidian streak?
Obsidian is usually jet black. However it can also be green, brown, red, blue, yellow or orange due to light inclusions or trace elements. It is an igneous rock that results from lava cooling, streaks can be of any colour depending on the point of origin
Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is volcanic rock obsidian?
No. Obsidian is just one of many types of volcanic rock.
Teotihuacan is famous for artifacts made from?
Volcanic rock.
What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
What kind of streak do obsidians have?
Obsidian typically exhibits a streak that is white to very light brown in color.
What is the common name for obsidian rock?
The common name for obsidian rock is volcanic glass.
Dark igneous rock formed from lava?
obsidian obsidian
