Augite - Wikipedia
Augite, also known as Augurite, is a common rock-forming pyroxene mineral with formula (Ca,Na) (Mg,Fe,Al,Ti) (Si,Al)2O6. The crystals are monoclinic and prismatic. Augite has two prominent cleavages, meeting at angles near 90 degrees. Augite is a solid solution in the pyroxene group.
Augite: A rock-forming mineral found throughout the world - Geology.com
What is Augite? Augite is a rock-forming mineral that commonly occurs in mafic and intermediate igneous rocks such as basalt, gabbro, andesite, and diorite. It is found in these rocks throughout the world, wherever they occur. Augite is also found in ultramafic rocks and in some metamorphic rocks that form under high temperatures.
Augite: Mineral information, data and localities. - mindat.org
Augite: Mineral information, data and localities. Named by Abraham G. Werner in 1792 from the Greek αυγή ("auge") for "shine" or "luster," in allusion to the appearance of its cleavage surfaces. Pyroxene Group, Clinopyroxene Subgroup.
Augite Mineral Physical - Optical Properties, Uses and Occurrence
2019年3月15日 · Augite occurs chiefly as short, thick, prismatic crystals with a square or octagonal cross section and sometimes as large, cleavable masses. It occurs in a solid-solution series in which diopside and hedenbergite are the end-members.
Augite: The pyroxene mineral Augite information and pictures
Augite is an important rock-forming mineral, and large crystals are fairly common. It is the most widespread member of the pyroxene group, and it frequently alter s to many other minerals, including Hornblende, Chlorite, and Epidote. When altered to Actinolite, it is often called Uralite.
Augite | Pyroxene, Igneous Rocks, Olivine | Britannica
Augite, the most common pyroxene mineral (a silicate of calcium, magnesium, iron, titanium, and aluminum). It occurs chiefly as thick, tabular crystals in basalts, gabbros, andesites, and various other dark-coloured igneous rocks.
The Pyroxene Mineral Group - Geology.com
Pyroxenes are members of a mineral group defined by a similar chemical compositions and crystal structures. They occur in igneous and metamorphic rocks throughout the world. Augite, diopside, jadeite and spodumene are four of the best-known pyroxenes.
Augite - Minerals Education Coalition
Augite is a rock-forming mineral of the pyroxene group commonly found within igneous and metamorphic rocks. Because its chemical structure is highly variable, augite might be considered by some to be its own group of minerals rather than an individual mineral.
Augite - Clark Science Center
Augite is a clinopyroxene, part of a solid solution series. It is an intermediate member of diopside and hedenbergite. Vitreous, translucent. Black to dark green in hand sample. Usually colorless, tan-gray, pale green, pale brown or brownish green in thin section. May be zoned. Presence of tinanium darkens appearance. Short prismatic crystals.
Pyroxene Group Minerals | Properties, Occurrence and Uses
2023年4月23日 · Augite is often brittle, breaking into splintery fragments on the streak plate. These can be observed with a hand lens. Rubbing the debris with a finger produces a gritty feel with a fine white powder beneath.