What glitters is not only Crusher, but also feldspar. The feldspar mineral family is huge, with abundant stones and rich gems. Feldspar is the most abundant mineral group in the earths crust, known as "the first group of minerals in the world", which can be described as the kingdom of colorful gems.

Feldspar minerals

Feldspar is the most abundant mineral in Earths crust

In the entire crust, the main minerals that makeup rocks are rock-forming minerals, such as feldspar, Crusher, pyroxene, Crusher, amphibole, clay, olivine, etc. Surprisingly, feldspar group minerals are the most widely distributed. The total content is higher than quartz (silicon dioxide), accounting for about 50% of the total weight of the earths crust.

Feldspar is the most common and the most abundant rock-forming mineral, crystallized from magma in intrusive and extrusive rocks. Among them, 60% of feldspar minerals occur in magmatic rocks, 30% in metamorphic rocks, and 10% in sedimentary rocks.

The name feldspar comes from German

Feldspar is a general term for feldspar group minerals and is the main component of igneous rocks. The name has its historical origins, derived from the German feldspath.

"Feld" means "field" because some early specimens were found in the field, and "spar" is a geological term for non-metallic minerals, meaning "split", explaining that feldspar has a vitreous luster and good cleavage. In 1747, Johan Gottschalk Wallerius named the mineral feldspar.

Feldspar family has similar properties

Crusher have very similar structure, chemical composition, and physical properties. The following are the basic characteristics of feldspar:

Feldspar minerals Properties Chemical formula X(Al, Si)4O8, where X is usually potassium, sodium, or calcium Chemical composition Potassium, sodium, and calcium-aluminum silicates Crystal system Monoclinic or triclinic Mohs hardness 6~6.5 Specific gravity 2~2.5 Density About 2.56 Luster Vitreous luster Tenacity Brittle Transparency Translucent to opaque

Feldspar color is the most variable

Feldspar color is related to the trace elements (such as Rb, Fe), mineral inclusions, and special optical effects it contains. Because different types of feldspar contain different minerals, their colors are also diverse.

Feldspar color is usually white, pink, gray, or brown, as well as colorless, yellow, orange, red, black, blue, green, etc. Feldspar with its beautiful color can be used as a decorative stone and secondary gemstone, which is very popular.

Feldspar has a huge family variety

There are many types of feldspar, which is a huge mineral family. According to their chemical composition, feldspar group minerals can be divided into two subgroups: potassium feldspar and plagioclase. They can be subdivided into:

    Potassium feldspar: Orthoclase, sanidine and microcline;
  • Plagioclase: Albite, oligoclase, medium feldspar, labradorite, anorthite, etc.

According to their main elements, feldspar group minerals can be divided into three categories: potassium feldspar, albite, or anorthite. Feldspar rich in potassium (K) is called potassium feldspar. Feldspar rich in sodium (Na) is albite. Feldspar rich in calcium (Ca) is called anorthite.

Feldspar is the kingdom of colored gems

Feldspar is one of the most abundant mineral families in the world and a country of colorful gems. Some feldspar gemstones only occur in isolated deposits and are even rarer than diamonds, rubies, or sapphires.

There are various kinds of gemstones in the feldspar family, and orthoclase and plagioclase are mainly related to gems. Moonstone, amazonite, sunstone, and labradorite are some of the well-known jewelry varieties, which can shine dazzling light. Cant wait to see the brilliance?

1. Moonstone ！！ the birthstone of June

Properties of moonstone

    Gem type: Orthoclase
  • Crystal system: Monoclinic system
  • Refractive index: 1.518~1.526
  • Density: 2.552.61g/cm3
  • Color: Can be colorless, white, gray, green, brown, etc.