Want this question answered?
feldspar
It is usually potassium feldspar, either microcline or orthoclase.
It is easily chemically weather, so it gone by the time a rock becomes a soil.
Adularia is a form of orthoclase feldspar, a mineral which forms igneous rock, found in white prismatic crystals.
The size of crystals that form granite are usually large and coarse-grained. Granite, which is mainly composed of feldspar, mica and quartz, is often used as a building material.
Felsic igneous rocks (the lightest in color) are comprised mostly of quartz and potassium feldspar. Intermediate igneous rocks (somewhat darker than felsic) are made up of some quartz and potassium feldspar, but mostly plagioclase feldspar.
It is because quartz are consist of non-permeable substance than of the feldspar that is can easily break down to pieces because of lack of strong chemically bonded components.. > AGRI
Yes. Triclinic crystals are usually flat with sharp edges though they don't have right angles. ex. feldspar
Some feldspar crystals can be quite lustrous, like albite, but many, like microcline, are on the dull side. Feldspar cleaves well, into flat planes which can be quite lustrous, and will indeed reflect sunlight. It takes a nice polish, which will reflect even more light. Some varieties of feldspar, like moonstone or labradorite, interfere with the light, and display spectacular play of color.
Pumice usually does not contain minerals. it is made of glass. A few microscopic crystals of quartz or feldspar may be found here or there in the glassy groundmass.
no, feldspar is a mineral.
no, feldspar is a mineral.