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:

Nosean

Nosean single crystal2 - Ochtendung, Eifel, Germany
Nosean single crystal - Ochtendung, Eifel, GermanyNosean single crystal2 - Ochtendung, Eifel, Germany Nosean, otherwise called Noselite, is...

Diopside

Diopside is a member of pyroxene group mineral with formula is MgCaSi2O6. Specimens can be colorless but are more often bottle green, brownish green, or light green in color. It has two distinct prismatic cleavages at 87 and 93° typical of the pyroxene series. Diopside occurs in the form of equant to prismatic crystals that are usually nearly square in section.

Lazurite

Lazurite is a member of sodalite group in feldspathoid mineral also it is tectosilicate with formula is (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)]. A sodium calcium aluminosilicate, lazurite is the main component of the gemstone lapis lazuli and accounts for the stone’s intense blue color

Sodalite

Sodalite is a feldspathoidal tectosilicate mineral that is rich royal blue widely used as an ornamental gemstone. Chemical formula is Na8 (Al6Si6O24) Cl2. Specimens can be blue, gray, pink, colorless, or other pale shades. They sometimes fluoresce bright orange under ultraviolet light. Sodalite nearly always forms massive aggregates or disseminated grains.

Leucite

Leucite-from-Vesuvius-Naples-Campania-Italy
Leucite-from-Vesuvius-Naples-Campania-ItalyLeucite in cross polarized lightWell-Crystalized-Leucite-in-Matrix Leucite is a feldspathoid mineral in group of tectosilicate. It is a rock...

Nepheline

Nepheline is the most common feldspathoid mineral in the world, its name from the Greek word nephele, which means “cloud” a reference to the fact that the mineral becomes cloudy or milky in strong acids. Specimens are usually white in color, often with a yellowish or grayish tint.

Zeolite

Zeolites
Zeolite is a group of silicate minerals that a family of hydrated aluminosilicate minerals that contain alkali and alkaline-earth metals with unusual properties with importance industrial application. Zeolite form is usually well-formed crystals with pale colors and generally soft and can easily crushed.They are found in geologically young volcanic fields.

Natrolite

Natrolite is a tectosilicate mineral belong to zeolite group members.Its formula Na2Al2Si3O10 • 2H2O. A hydrated sodium aluminosilicate, natrolite takes its name from the Greek word natrium, which means “soda” a reference to the sodium content of this mineral. Natrolite can be pale pink, colorless, white, red, gray, yellow, or green.

Sphalerite

Sphalerite-Elmwood-Mine-Smith-County-Tennessee-USA
Sphalerite-Alston-Moor-Cumbria-BritainSphalerite-Elmwood-Mine-Smith-County-Tennessee-USASphalerite-Elmwood-Mine-Smith-County-Tennessee-USA2Sphalerite-pyrite-American-Mine-Bingham-Utah-USA Sphalerite mineral is in group of Sulfide mineral that is formula ((Zn, Fe)S).It is the principal ore...

Autunite

Autunite Meta-autunite Specimen Autunite is a phosphate mineral that formula is calcium uranium phosphate (Ca (UO2)2(PO4)2·10–12H2O) and...

Wollastonite

Wollastonite-from-Willsboro
Wollastonite Wollastonite Wollastonite is a group of innosilicate mineral, formula is CaSiO3 that may inlude small amount...

Opal

Opal from Yowah, Queensland, Australia
Hydrophane opal (precious opal) dried out (Tertiary; Ethiopia)Opal from Yowah, Queensland, Australia Opal is classed a mineraloid, crystalline...