Geographic Minerals

Nelenite is a rare manganese iron phyllosilicate arsenate mineral found in Franklin Furnace, New Jersey. It is a trigonal-hexagonal scalenohedral brown mineral containing arsenic, hydrogen,…

Auricupride is a natural alloy that combines copper and gold. Its chemical formula is Cu3Au. It is named after its chemical composition, being a natural…

Schreibersite is a mineral consisting of a phosphide of iron and nickel and occurring in meteorites. It is generally a rare iron-nickel phosphide mineral, (Fe,…

Allabogdanite is a very rare phosphide mineral with the formula (Fe, Ni)2P, found in 1994 in a meteorite. It is the only known natural high-pressure…

Nekrasovite is a rare copper vanadium sulfosalt mineral with formula Cu26V2(Sn,As,Sb)6S32. It is an isometric-hextetrahedral reddish brown mineral containing antimony, arsenic, copper, iron, sulfur, tin,…

Spherulites (/ˈsfɛrʊlaɪt/) are spherical bodies that can be found in glassy rocks, especially silica-rich rhyolites. They appear as globules about the size of millet seed…

Natrophilite is a mineral with the chemical formula NaMnPO4. It is a mineral consisting of phosphate of sodium and manganese almost isostructural with varulite but…

Natron is a mineral of hydrous sodium carbonate, often found crystallized with other salts. It is a naturally occurring mixture of sodium carbonate decahydrate (Na2CO3·10H2O,…

Natrolite is a tectosilicate mineral species belonging to the zeolite group. It is a common member of the zeolite group and is known for its…

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…

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…

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.…