Schreibersite – a rare iron-nickel phosphide mineral
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,…
Geographic Minerals
Allabogdanite – a very rare phosphide mineral
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: properties and occurrences
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,…
Spherulite (Structure, Occurrence)
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: Properties and Occurrences
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: Properties and Occurrences
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: Properties and Occurrences
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: 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…
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…
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.…
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.…
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:…
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