Geographic Minerals

Native Copper: Properties and Occurrences

Native Copper: Properties and Occurrences

Native copper is an element and a mineral. It is an uncombined form of copper that occurs as a natural mineral. It is rarely found in large quantities, thus it is seldom the primary target of a mining operation. Copper is one of the few metallic elements to occur in native form, although it most .....

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Vermiculite (Mineral)

Vermiculite (Mineral)

Vermiculite is a hydrous phyllosilicate mineral that expands rapidly when heated and is used in construction and consumer products. It is non-combustible, highly absorbent, pH neutral, inert, non-reactive to all but very strong acids, and compressible, and it saves energy when used as insulation......

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Crushed Stone

Crushed Stone

During the crushing process, crushed stone or angular rock sometimes develops an angular and jagged edge. It is the most basic mineral on the planet. It is plentiful, easily available, and reasonably priced. It is a form of construction aggregate that is usually made by mining a suitable rock dep.....

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Narsarsukite: Properties and Occurrences

Narsarsukite: Properties and Occurrences

Narsarsukite is a rare silicate mineral. It is not a well-known mineral, but it is a nice collection mineral. Its chemical formula Na2(Ti,Fe3+)Si4(O,F)11 or Na4(Ti,Fe)4[Si8O20](O,OH,F)4. It is a mineral consisting of a silicate and fluoride of sodium, iron, and titanium. It is a yellow silicate a.....

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Nambulite: Properties and Occurrences

Nambulite: Properties and Occurrences

Nambulite is a triclinic-pinacoidal reddish orange-brown mineral containing hydrogen, lithium, manganese, oxygen, silicon, and sodium. It is a lithium-bearing manganese silicate mineral with the formula: (Li, Na)Mn4Si5O14(OH). It is named after the mineralogist, Matsuo Nambu (born 1917) of Tohoko.....

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Naldrettite: Properties and Occurrences

Naldrettite: Properties and Occurrences

Naldrettite is a mineral with a chemical formula of Pd2Sb. It is a new intermetallic mineral discovered in the Mesamax Northwest deposit, Cape Smith folds belt, Ungava region, northern Québec. It is named after Anthony J. Naldrett (born 1933), a professor at the University of Toronto, who has ma.....

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Dolomite (Properties, Uses)

Dolomite (Properties, Uses)

Dolomite (otherwise called dolomite rock, dolostone, or dolomitic stone), kind of limestone, the carbonate part of which is overwhelmed by the mineral dolomite, calcium magnesium carbonate (CaMg(CO3)2). It is a typical stone shaping mineral; it is the essential part of the sedimentary stone known.....

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Nahcolite: Properties and Occurrences

Nahcolite: Properties and Occurrences

Nahcolite is a mineral consisting of natural sodium bicarbonate. It is a soft, colorless, or white carbonate mineral with the composition of sodium bicarbonate (NaHCO3) also called thermokalite. It is the natural mineral most familiar to us as Sodium Bicarbonate or Sodium Hydrogen Carbonate or (m.....

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Nagyágite: Properties and Occurrences

Nagyágite: Properties and Occurrences

Nagyágite [Pb5Au(Te, Sb)4S5-8] is a rare sulfide mineral with a known occurrence associated with gold ores. It is a mineral that is a sulfide of lead, gold, tellurium, and antimony. It is a monoclinic (pseudotetragonal) telluride, antimonide, and sulfide of lead and gold, occurring as dark grey .....

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Fuchsite (Mineral)

Fuchsite (Mineral)

Fuchsite is a type of mica/Muscovite that crystallizes in the form of a plate such as layers, scales, masses, and tabular crystals, also known as chrome mica. It is a chromium (Cr) rich muscovite mineral type, belonging to the phyllosilicate mineral mica group, with the chemical formula K(Al,Cr)2.....

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Coesite – a form of silicon dioxide

Coesite – a form of silicon dioxide

Coesite is a high-pressure polymorph (crystal form) of silica, silicon dioxide (SiO2). It is a form (polymorph) of silicon dioxide SiO2 that is formed when very high pressure (2–3 gigapascals), and moderately high temperature (700°C, 1,300°F), are applied to quartz. Coesite was first synthesi.....

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Lechatelierite – a natural silica glass

Lechatelierite – a natural silica glass

Lechatelierite is a natural silica glass that has the same chemical composition as coesite, cristobalite, stishovite, quartz, and tridymite but has a different crystal structure. It is silica glass, amorphous SiO2, non-crystalline mineraloid. It is an amorphous form of silicon dioxide (SiO2), lac.....

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