Eclogite - Wikipedia
WEBEclogite (/ ˈ ɛ k l ə dʒ aɪ t /) is a metamorphic rock containing garnet (almandine-pyrope) hosted in a matrix of sodium-rich pyroxene . Accessory minerals include kyanite , rutile , quartz , lawsonite , coesite , amphibole , phengite , paragonite , zoisite , dolomite , corundum and, rarely, diamond .
Eclogite - Metamorphic Rocks - Sandatlas
WEBEclogite is a very beautiful rock. It is sometimes referred to as a christmas rock because of bright green, red and white minerals. Green is pyroxene omphacite, red is garnet, white is quartz. Nordfjord, Western Norway. Width of view is about 15 cm. It is chiefly composed of red (garnet) and green (omphacite) minerals.
Eclogite | Metamorphic, Mafic Minerals & Garnet | Britannica
WEBmafic rock. eclogite, any member of a small group of igneous and metamorphic rocks whose composition is similar to that of basalt. Eclogites consist primarily of green pyroxene (omphacite) and red garnet (pyrope), with small amounts of various other stable minerals— e.g., rutile. They are formed when volcanic or metamorphic rocks rich in such ...
Eclogite - an overview | ScienceDirect Topics
WEBEclogite is an unusually dense metamorphic rock, typically of basaltic composition, that represents a recorder and/or driving force for planetary-scale processes and evolution. Eclogite-facies metamorphic conditions encompass a wide range of pressure–temperature space from deep crustal to mantle depths, reflecting tectonic setting.
Eclogite : Compositions, Formation, Properties » Geology Science
WEBJan 12, 2023 · Eclogite is a type of metamorphic rock with distinct mineral composition and texture, typically formed under high-pressure and high-temperature conditions deep within the Earth's crust. The name "eclogite" is derived from the Greek words "eklogē," meaning selection or choice, and "lithos," meaning rock. The term reflects the fact that eclogite …
Eclogites - Halama - 2024 - Geology Today - Wiley Online Library
WEBFeb 8, 2024 · The name eclogite was coined by the French mineralogist René Just Haüy (1743–1822), known as the ‘Father of Crystallography’ (Fig. 1).The term eclogite means ‘chosen rock’, a thoroughly deserved denomination, which Haüy based on the peculiar binary mineral assemblage of garnet and clinopyroxene, described in his Traité de …
Eclogite resembling metamorphic disequilibrium assemblage ...
WEBNov 16, 2020 · Eclogite facies metamorphic rocks formed through subduction and collision processes are common in global orogenic belts 1,2,3,4,5,6,7,8,9,10,11,12 (e.g., Usagaran belt 1, Belomorian Belt 2, Trans ...
Eclogite | SpringerLink
WEBThe rock name eclogite was first used by R. J. Haüy in 1822 for a “fancy rock” composed mainly of two minerals “diallage and garnet accompanied accidentally by kyanite, quartz, epidote, and lamellar amphibole.”. Later the name was applied to all granular rocks consisting essentially of greenish clinopyroxene and reddish garnet, with a ...
Nature and origin of eclogite xenoliths from kimberlites
WEBSep 1, 2004 · Eclogite is the original host rock from which diamond was first recovered (Bonney, 1899) and diamond with eclogitic affinity dominates the diamond population at some localities, for example at Orapa (Botswana; Gurney et al., 1991). Best studied, therefore, are eclogite suites from major diamond mines on the Kaapvaal craton, …
Eclogite | SpringerLink
WEBNov 11, 2019 · Eclogite is a moderate to deep regional metamorphic rock composed mainly of omphacite and calcium-containing pyrope and almandine. Secondary minerals include quartz, spinel, olivine, enstatite, kyanite, rutile and zoisite. Ultra-high-pressure minerals such as coesite and diamond are sometimes present and can indicate the …
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