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Minerals

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A mineral is a naturally occurring chemical compound usually of crystalline form and not produced by life processes. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy. To meet the definition of “mineral” used by most geologists, a substance must meet five requirements:

Chalcopyrite

Chalcopyrite is a copper include sulfide mineral .It has to formula CuFeS2.It is usually seed brassy to golden yellow color .Also copper is most important ore mineral thousands of years. Hardness of 3.5 – 4 on the Mohs scale and diagnostic properties streak is black green

Galena

Galena is most abundant and widely found sulfide mineral and other name is lead glance .It is most important minerals of lead and silver.Crystal system is cubic ,isometric system and xpl features not observed. It is often associated with the minerals sphalerite, calcite and fluorite.

Spinel

Spinel is the name of both an individual mineral and of a group of metal-oxide minerals that share the same crystal structure. Minerals in this group include gahnite, franklinite, and chromite. Spinel is found as glassy, hard octahedra, or as grains or masses.

Goethite

Named after the German mineralogist Johann Wolfgang von Goethe in 1806, goethite is a common mineral. It can be brownish yellow, reddish brown, or dark brown in color, depending on the size of the crystal in the specimen—small crystals appear lighter, and larger ones darker.

Magnetite

Magnetite is rock mineral and one of the most importan iron ore minerals with chemical formula is iron(II,III) oxide, Fe2+Fe3+2O4 .It also Magnetite is as the name magnetic minerals to attracted to a magnet. It is the most magnetic natural occuring minerals in the World. Small grains of magnetite occur in almost all igneous and metamorphic rocks.

Hematite

Hematite is a mineral and a common form of iron oxide. It is known for its distinctive reddish-brown to black metallic luster. The name...

Malachite

Possibly the earliest ore of copper, malachite is believed to have been mined in the Sinai and eastern deserts of ancient Egypt from as early as 3000 BCE. Single crystals are uncommon; when found, they are short to long prisms.
Dolomite - Large specimen with thick tabular white, glossy crystals to 2cm. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.

Dolostone (Dolomite)

An important rock-forming mineral, dolomite is named after the French mineralogist Déodat Gratet de Dolomieu. It is a colorless to white, pale brown, grayish, reddish, or pink mineral. Its crystals are commonly rhombohedral or tabular, often have curved faces, and sometimes cluster in saddle-shaped aggregates.

Calcite

Calcite is a rock-forming mineral with a chemical formula of CaCO3. It is extremely common and found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" - one that is found everywhere.

Feldspar Group Minerals

“Feldspar” is the name of a large organization of rock-forming silicate minerals that make up over 50% of Earth’s crust. They are discovered in igneous, metamorphic, and sedimentary rocks in all components of the sector. Feldspar minerals have very comparable structures, chemical compositions, and bodily properties. Common feldspars consist of orthoclase (KAlSi3O8), albite (NaAlSi3O8), and anorthite (CaAl2Si2O8).

Quartz

Quartz is one of the most famous minerals on the earth. It occurs in essentially all mineral environments, and is the crucial constituent of many rocks. Quartz is likewise the maximum varied of all minerals, taking place in all distinct bureaucracy, habits, and colorings. There are more range names given to Quartz than any other mineral. Although the Feldspars as a group are more regular than Quartz, as an man or woman mineral Quartz is the maximum commonplace mineral.

Chlorite

Chlorite is the organization name for approximately 10 related minerals. However, the time period Chlorite may be used each to explain the organization in fashionable, or as a specific term to explain any inexperienced member of the Chlorite institution whose precise identity isn't always realistic to be decided.
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