mineral formation
61geological formation — noun (geology) the geological features of the earth • Syn: ↑formation • Topics: ↑geology • Hypernyms: ↑object, ↑physical object • Hyponyms …
62halide mineral — Any of a group of naturally occurring inorganic compounds that contain a halogen such as fluorine, chlorine, iodine, or bromine as the anion. Such compounds, with the notable exceptions of fluorite, halite, and sylvite, are rare and of very local …
63igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …
64Mineralogy — is the study of chemistry, crystal structure, and physical (including optical) properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical… …
65Geothermobarometry — is the science of measuring the previous pressure and temperature history of a metamorphic or intrusive igneous rocks. Geothermobarometry is a combination of geobarometry , where a pressure of mineral formation is resolved, and geothermometry… …
66Lithium — (pronEng|ˈlɪθiəm) is a chemical element with the symbol Li and atomic number 3. It is a soft alkali metal with a silver white color. Under standard conditions, it is the lightest metal and the least dense solid element. Like all alkali metals,… …
67Paleomagnetism — is the study of the record of the Earth s magnetic field preserved in various magnetic minerals through time. The study of paleomagnetism has demonstrated that the Earth s magnetic field varies substantially in both orientation and intensity… …
68Halloysite — is a 1:1 aluminosilicate clay mineral with the empirical formula Al2Si2O5(OH)4. Its main constituents are aluminium (20.90%), silicon (21.76%), and hydrogen (1.56%). Halloysite typically forms by hydrothermal alteration of alumino silicate… …
69stalactite and stalagmite — Elongated forms of various minerals deposited from solution by slowly dripping water. A stalactite hangs like an icicle from the ceiling or side of a cavern. A stalagmite rises from the floor of a cavern. The two are not necessarily paired; when… …
70Acetamid — Strukturformel Kristallsystem trigonal[1] …
