Entries by DonghaiCrystal

Pyroxene

augite fassaite augite pyroxene mineral Augite Pyroxene is a set of essential rock-forming inosilicate minerals discovered in many igneous and metamorphic rocks. Pyroxenes have the general components is XY(Si,Al)2O6. Although […]

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Wollastonite

Wollastonite Wollastonite Wollastonite is a group of innosilicate mineral, formula is CaSiO3 that may inlude small amount of magnesium, manganese and iron substituting for calcium. A valuable industrial mineral, wollastonite […]

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Cavansite

Cavansite is a relatively rare and striking mineral known for its vibrant blue color. The name “cavansite” is derived from its chemical composition, as it contains calcium (Ca), vanadium (V), […]

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Olivine

Olivine is one of the most common minerals within the earth, and is a prime rock forming mineral. Despite this, desirable specimens and huge crystals are unusual and fashionable. Only […]

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Sillimanite

Sillimanite is a mineral that belongs to the group of aluminosilicate minerals known as the sillimanite group. It is named after the American chemist Benjamin Silliman Jr., who first described […]

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Kaolinite

Kaolinite Mineral Rock Kaolinite sample from Twiggs County, Georgia, USA. This sample is from the Cretaceous rocks of Georgia Kaolinite is a clay mineral with chemical composition Al2Si2O5(OH)4. It is […]

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Clay Minerals

Clay minerals are a group of minerals that are typically found in soils, sediments, and rocks. They are characterized by their small particle size, which is typically less than 2 […]

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Tremolite

Tremolite,Campolungo, Piumogna Valley, Switzerland Tremolite from Franklin, Sussex Co., New Jersey, United States Tremolite is a silicate mineral and member of the amphibole group. Chemical formula is Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2. A calcium […]

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Zircon

Zircon, scientifically known as zirconium silicate (ZrSiO4), is a mineral prized for its versatility and wide-ranging applications. With its remarkable resistance to heat, corrosion, and chemical alteration, zircon finds use […]

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Lazurite

Lazurite, pyrite, calcite 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 […]

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Anthophyllite

The name anthophyllite comes from the Latin word anthophyllum, which means “clove”—a reference to the mineral’s clove-brown to dark brown color. Specimens can also be pale green, gray, or white. […]

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Glaucophane

The Glaucophane mineral is named after two Greek words: glaukos, which means “bluish green”; and phainesthai, which means “to appear.” Specimens can be gray, lavender blue, or bluish black. Crystals […]

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