Antigorite is a lamellated, monoclinic mineral in the phyllosilicate serpentine subgroup with the ideal chemical formula of (Mg,Fe2+)3Si2O5(OH)4.[2] It is the high-pressure polymorph of serpentine and is commonly found in metamorphosed serpentinites. Antigorite, and its serpentine polymorphs, play an important role in subduction zone dynamics due to their relative weakness and high weight percent of water (up to 13 weight % H2O).[3][4] It is named after its type locality, the Geisspfad serpentinite, Valle Antigorio in the border region of Italy/Switzerland[5] and is commonly used as a gemstone in jewelry and carvings.
Antigorite is a lamellated, monoclinic mineral in the phyllosilicate serpentine subgroup with the ideal chemical formula of (Mg,Fe2+)3Si2O5(OH)4. It is...
usually made. There are three important mineral polymorphs of serpentine: antigorite, lizardite and chrysotile. Serpentine minerals are polymorphous, meaning...
Minerals formed by serpentinization include the serpentine group minerals (antigorite, lizardite, chrysotile), brucite, talc, Ni-Fe alloys, and magnetite. The...
synonym of lizardite. Antigorite and lizardite commonly coexist metastably;: 24 lizardite may also be able to turn into antigorite at over 350 degrees...
Bowenite is a hard, compact variety of the serpentinite species antigorite, (Mg3(OH)O4Si2O5). Classed as semi-precious gemstone it has been used for tools...
magnetite (Fe3O4). Brucite (Mg(OH)2) and antigorite are less commonly present. Lizardite, chrysotile, and antigorite all have approximately the formula Mg3(Si2O5)(OH)4...
ornamented birch-bark. The axe blade is 17.4 cm (6.9 in) long and made of antigorite, mined in the Gotthard-area. The haft goes through a biconical drilled...
is a type of serpentine jade, primarily composed of minerals such as antigorite and magnetite. It exhibits colors ranging from dark green to black. It...
reactions – Rock formed by hydration and metamorphic transformation of olivine Antigorite Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical...
430 million years old) consists predominantly of the serpentine minerals, antigorite, chrysotile, and lizardite; it also contains asbestos and talc. At the...
serpentine soil contains minerals of the serpentine subgroup, especially antigorite, lizardite, and chrysotile or white asbestos, all of which are commonly...
barbertonite (the hexagonal polymorph of Mg6Cr2CO3(OH)16·4H2O), chromite and antigorite. Discovered in 1910 on the west coast of Tasmania, Australia, it was first...
purely hydrous, CO2-free environments will tend to form serpentinite-antigorite-brucite-tremolite assemblages (dependent on MgO content) or at amphibolite...
Stishovite + H2O Antigorite Serpentine is another important water bearing phase that breaks down at eclogite facies conditions. Antigorite breaks down at...
Global Information