no, feldspar is a mineral.
Granite
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.
what is feldspar made of? The feldspars are a family of silicate minerals which occur in igneous rocks. There are many different members to the feldspar group. Obviously, silica and oxygen form the foundation for the group, but calcium, sodium, and potassium are also present. One of these elements is usually dominant, but most of the feldspars contain all 3 in varying amounts. It is the proportions of these 3 elements which help determine which specific feldspar is formed.
feldspar
No
granite is made up of the minerls feldspar and mica
No, a feldspar is a mineral, and a marble is a rock. Marble is a metamorphic rock, made mostly of the mineral Calcite.
Silica and Feldspar
Granite.
no, feldspar is a mineral.
no, feldspar is a mineral.
Feldspar is a mixture.
Feldspar's fracture is brittle
There are many sorts of igneous rocks. Granite is made of quarts, feldspar, and mica, while basalts are made of less than 20% quartz and less than 10% feldspar and the rest made up of pyroxenes and olivine.
Granite
The fracture of feldspar is conchoidal or brittle.