Minerals
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:
Onyx
Onyx is a type of chalcedony, which is a microcrystalline form of quartz. It is a banded variety of chalcedony that forms in concentric...
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...
Pyroxene
The pyroxenes are 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 aluminium substitutes extensively for silicon in silicates consisting of feldspars and amphiboles,
Hiddenite
Hiddenite is a fascinating gemstone that belongs to the mineral family of spodumene. It is a green variety of spodumene and is named after...
Aventurine
Aventurine is a type of quartz characterized by its unique sparkling or shimmering effect, known as aventurescence. It is a popular gemstone and is...
Magnetite
Magnetite is rock mineral and one of the most importan iron ore minerals with chemical formula is iron(II,III) oxide, Fe2+Fe3+2O4 .It also Magnetite is as the name magnetic minerals to attracted to a magnet. It is the most magnetic natural occuring minerals in the World. Small grains of magnetite occur in almost all igneous and metamorphic rocks.
Brucite
Brucite is a mineral that is composed of magnesium hydroxide (Mg(OH)2). It belongs to the class of minerals known as hydroxides, which are compounds...
Rutilated Quartz
Rutilated quartz is a type of quartz crystal that contains needle-like inclusions of the mineral rutile (titanium dioxide). These fine, golden, or reddish-brown needle-like...
Musgravite
Musgravite is a rare and precious gemstone that belongs to the oxide mineral family. It is a member of the taaffeite family, which also...
Molybdenite
A molybdenum sulfide, molybdenite is the most important source of molybdenum, which is an important element in high-strength steels. Molybdenite was originally thought to be lead, and its name is derived from the Greek word for lead, molybdos. It was recognized as a distinct mineral by the Swedish chemist Carl Scheele in 1778.
Brazilianite
Brazilianite is a rare and highly valued gemstone named after its country of origin, Brazil. It is a phosphate mineral that belongs to the...
Yellow Apatite
Yellow Apatite is a variety of the mineral apatite, which belongs to the phosphate group. Apatite itself is a group of phosphate minerals that...
