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Feldspar

en.wikipedia.org/wiki/Feldspar

Feldspars are a group of rock-forming tectosilicate minerals that make up as much as 60% of the Earth's crust. Feldspars crystallize from magma as veins in both ...

Feldspar | Minerals Education Coalition

www.mineralseducationcoalition.org/minerals/feldspar

Feldspar is the name given to a group of minerals distinguished by the presence of alumina and silica (SiO2) in their chemistry. This group includes aluminum ...

THE FELDSPAR GROUP OF MINERALS

www.galleries.com/feldspar_group

The feldspar group is a fairly large group with nearly 20 members recognized, but only nine are well known and common. Those few, however, make up the ...

What is Feldspar? - Industrial Minerals Association - North America

www.ima-na.org/?page=what_is_feldspar

Feldspar is by far the most abundant group of minerals in the earth's crust, forming about 60% of terrestrial rocks. Most deposits offer sodium feldspar as well as ...

Feldspar - HyperPhysics

hyperphysics.phy-astr.gsu.edu/hbase/geophys/feldspar.html

Feldspar is a name given to a class of aluminum-containing silicates which are sometimes called light silicates or "nonferromagnesian silicates" since they don't  ...

feldspar | mineral | Britannica.com

www.britannica.com/science/feldspar

Feldspar, any of a group of aluminosilicate minerals that contain calcium, sodium, or potassium. Feldspars make up more than half of Earth's crust, and ...

University of Minnesota's Mineral Pages: Potassium Feldspar

www.esci.umn.edu/courses/1001/minerals/potassium_feldspar.shtml

Over half the Earth's crust is composed of a single group of minerals known as the feldspars. Feldspars are an important component of many building stones, but ...

Potash Feldspar - Digitalfire.com

digitalfire.com/4sight/material/potash_feldspar_1135.html

One of the most important materials for medium and high temperature ceramic glazes. Potash feldspars are often not as pure and white as soda spars.

Feldspar Distinctions, Characteristics & Identification - Geology

geology.about.com/od/minerals/a/aboutfeldspar.htm

Feldspar is the commonest mineral in the Earth's crust, but identifying it can be tricky.

Feldspar Group: Feldspar Group mineral information and data.

www.mindat.org/min-1624.html

A group of silicate minerals. May contain (very minor amount of) OH groups, that is considered as a defect (e.g., Yang et al., 2015).

Answers
feldĀ·spar
[feld-spahr, fel-]
NOUN
1.
any of a group of minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks.
Source: Dictionary.com
feldspar | Define feldspar at Dictionary.com
dictionary.reference.com/browse/feldspar
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