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the surface is cleavaged so therefore smooth
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∙ 8y ago
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What is perthitic texture?
A perthitic texture is an intimate intergrowth of sodic and potassic feldspar resulting from subsolidus exsolution (unmixing of two minerals). Strictly speaking a perthite has blebs or irregular lamellae of sodic feldspar within potassic alkali feldspar, however, the term perthite is often used to describe all types of exsolution in the feldspars. An antiperthite is an intergrowth arising due to exsolution where potassic feldspar is present as blebs or lamellae within a sodic feldspar. The term mesoperthite is used when sodic and potassic feldspars are in broadly equal anbundance. Perthite that can only be observed with the aid of a microscope is known as microperthite. Perthite in which the lamellae are barely visible under a microscope is termed cryptoperthite.
Is feldspar a metal?
no, feldspar is a mineral.
Is feldspar metalic?
no, feldspar is a mineral.
Does Gabbro and granite have a similar mineral composition and texture?
the textures are similar yes but gabbro is made up of calcite and olivine while granite contains biotite mica, feldspar, and quartz.
Is feldspar a compound or mixture?
Feldspar is a mixture.
What is the fracture of feldspar?
Feldspar's fracture is brittle
How do you classify igneous rocks from other types of rock?
Igneous rocks are identified by first looking at the color index. Felsic igneous rocks contain mostly potassium feldspar. Intermediate igneous rocks contain mostly plagioclase feldspar. Mafic igneous rocks contain pyroxene, olivine, and plagioclase feldspar. Ultra mafic igneous rocks contain mostly olivine. Then igneous rocks are identified based on texture. For example, the texture of igneous rocks can be aphanitic, pegmatitic, phaneritic, glassy, vesicular, etc.
What feldspar fracture?
The fracture of feldspar is conchoidal or brittle.
What is feldspar fracture?
The fracture of feldspar is conchoidal or brittle.
What is felsite?
An igneous rock containing mostly feldspar and quartz.
What has feldspar in it?
Feldspar can be found in many things, including soap
Step like cleavage is a property of what mineral?
feldspar
