phengite

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Phengite - Wikipedia
Phengite is a series name for dioctahedral micas of composition K(Al,Mg) 2 (OH) 2 (Si,Al) 4 O 10. It is common for Mg or Fe 2+ to substitute for Al on the Y ... en.wikipedia.org
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Phengite: Mineral information, data and localities.
Phengite is an aluminous true mica which contains a relatively high amount of tetrahedrally co-ordinated Si (>3.1 apfu). www.mindat.org
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ALEX STREKEISEN-Muscovite-
It can form a continuous series with celadonite and aluminoceladonite; intermediates are known as the variety phengite and K-deficient variants as illite. www.alexstrekeisen.it
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phengite
phengite Min. (ˈfɛndʒaɪt) Also 8 fengite; and in Gr.-L. form phengites (fɛnˈdʒaɪtiːz), also corruptly fingites. [ad. L. phengītēs, a. Gr. ϕεγγίτης phengite, selenite, or crystallized gypsum, f. ϕέγγο-ς light, lustre, moonlight: see -ite1 2 b.] 1. A transparent or translucent kind of stone known to t... Oxford English Dictionary
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Phengite - an overview | ScienceDirect Topics
Phengite is defined as a mineral that exhibits elevated concentrations of certain elements, enabling analysis of various isotope systems and providing key ... www.sciencedirect.com
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Mg-Phengite in Carbonate Rock Syngenetically Formed from ... - MDPI
Phengite, which is one of the potassic dioctahedral mica, occurs most commonly in metamorphic environments. Compositionally, phengite is an intermediate member ... www.mdpi.com
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[PDF] PHENGITE MICAS - American Journal of Science
However, the comparison between phengite and other micas indicates that it is a more dense type of mica than others which are alternative-muscovite and biotite. ajsonline.org
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Phengite geobarometry based on the limiting assemblage with K ...
Water activities below unity shift the Si isopleths of phengite towards higher pressures and lower temperatures, but the effects are relatively small. Tests of ... link.springer.com
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The mineral chemistry, near-infrared, and mid-infrared reflectance ...
Phengite is the main potassic dioctahedral mica identified at the Olympic Dam iron oxide–copper–gold (IOCG) deposit, South Australia, where its mineral ... www.sciencedirect.com
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Phengite - YouTube
... phengite has been proposed as a geobarometer for the metamorphism of low grade schists. This video is targeted to blind users. Attribution ... www.youtube.com
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Empirical phengite geobarometer: Background, calibration, and ...
Phengite is a common metamorphic mineral stable in a wide pressure range. The dependence of pressure on silicon content established in the mid-20th century link.springer.com
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fengite
fengite see phengite. Min. Oxford English Dictionary
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Omphacite
Associated minerals in eclogites except the major minerals include rutile, kyanite, phengite, and lawsonite. wikipedia.org
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Chlorite group
At higher temperatures, much of the chlorite is destroyed by reactions with either potassium feldspar or phengite mica which produce biotite, muscovite wikipedia.org
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specular
specular, a. (ˈspɛkjʊlə(r)) [ad. L. speculāris, f. speculum speculum; or, in senses 6 and 7, f. L. speculārī to spy, observe, specula watch-tower. Cf. F. spéculaire (16th c. in Godef. Compl.), Prov. specular, It. speculare, specolare, Sp. and Pg. especulario.] I. 1. a. specular stone (after L. specu... Oxford English Dictionary
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