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Why is olivine a rare mineral in sandstone--even on the beaches of volcanic islands?
Wiki User
∙ 10y ago
Because it it unstable on the suface of the earth
Wiki User
∙ 10y ago
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Is rhyolite a rock or mineral?
It is a volcanic rock.
Is a mineral formed by cooling after a volcanic eruption?
yes they are but only because of metamorphosis and the reaction the mineral has. The mineral takes years maybe century's to cool down. it has a crystallized diamond shape and can be found in many shapes, and colors.
What igneous rock has crystals that are not visible?
Extrusive igneous rock consists of mineral crystals that are not observable with the naked eye. Obsidian is an extrusive igneous rock (volcanic glass) where there technically are no mineral crystals.
Is tuff a mineral?
No. Tuff is an igneous rock. it contains a number of minerals as well as volcanic ash and pumice, which are forms of volcaninc glass.
What mineral has a hardness of 5 Mohs scale nad can be scratched by a steel?
apatite, cobalt, zirconium, palladium, tooth enamel, obsidian (volcanic glass)
Is volcanic glass a mineral?
Volcanic glass is not a mineral. It's composition is complex, and their is no crystalline structure.
How is volcanic glass different from a mineral?
Volcanic glass does not technically contain mineral crystals. The definition of a mineral requires a crystalline structure. Secondly, the chemical composition of volcanic glass could vary widely. Minerals have definite parameters for chemical composition.
Is rhyolite a rock or mineral?
It is a volcanic rock.
Is icelandite a mineral?
No. It's an igneous volcanic rock.
What cayman island mineral?
The Cayman Islands have no specific mineral.
Is volcanic glass a mineral group?
No. By definition, a mineral must have a crystalline structure. Glass does not have a crystalline structure.
What is the richest soil with mineral contents?
In volcanic rock der
Is sulfuric a mineral?
no
What is an amygdule?
An amygdule is a rounded mass of secondary mineral found in volcanic rock.
What type of rocks is the quartz?
Quartz is a mineral that is formed by volcanic action. It is the second most common mineral. Feldspar is more common.
Why are volcanic soils are some of the most fertile soils on earth?
volcanic rocks are made of mineral that contain a wide variety of elements that are important to plant growth.
Why volcanic soils are some of the most fertile soils on Earth.?
volcanic rocks are made of mineral that contain a wide variety of elements that are important to plant growth.
