I-Chondrodite, evela eMyanmar

I-Chondrodite Myanmar

Ulwazi lwamaGemstone

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I-Chondrodite, evela eMyanmar

ividiyo

I-Chondrodite iyi-mineral nesosilicate nefomula (Mg, Fe) 5 (SiO4) 2 (F, OH, O) 2. Nakuba kungumsoco ongavamile, yilona ilungu elivame ukuhlangana nelinye lamaqembu amaminerali amaningi. Yakhiwa ezindaweni zokufaka amanzi e-hydrothermal kusuka kwi-dolomite yangaphakathi ye-metamorphosed. Itholakala futhi ehlotshaniswa ne-skarn ne-serpentinite. Itholakala ku-1817 ku-Mt. Somma, ingxenye ye-Vesuvius complex e-Italy, futhi ibizwa ngokuthi "granule" yesiGreki, okuyinto evamile kulo mmbiwa.

Formula

I-Mg5 (i-SiO4) i-2F2 yindlela yokuphela yelunga njengoba inikezwe yi-International Mineralogical Association, ubukhulu be-molar 351.6 g. Nokho, kukhona ngokuvamile ezinye OH e F amasayithi, futhi Fe futhi Ti kungaba bamelele MG, ngakho ifomula ngenxa yezimbiwa zemvelo kungcono ebhaliwe (MG, Fe, Ti) 5 (SiO4) 2 (F, OH, O ) 2.

Color

I-Chondrodite ene-magnetite, umgodi waseTilly Foster, uBrewster, eNew York, eU.SA
Chondrodite kuyinto ophuzi, osawolintshi, obomvu noma onsundu, noma akuvamile kungekho nto enemibala emihle, kodwa nokuklanywa ezahlukene umbala umfutho kuvamile, netindishi intergrown ka chondrodite, humite, clinohumite, forsterite futhi monticellite abikwe.

izakhiwo optical

Chondrodite kuyinto biaxial (+), ne indices yezokubona ezihlukahlukene kubikwe njengobugebengu nα = 1.592 - 1.643, nβ = 1.602 - 1.655, nγ = 1.619 - 1.675, birefringence = 0.025 - 0.037, futhi 2V alinganiswe njengahlukile 64 ° ukuze 90 °, kubalwa: 76 ° kuya ku-78 °. Ama-indices e-refractive avame ukwanda kusuka ku-norbergite kuya ku-clinohumite eqenjini elihle. Banda futhi nge-Fe2 + no-Ti4 + futhi (OH) - esikhundleni sikaF-. Ukuhlakazeka: r> v.

Environment

I-Chondrodite itholakala ikakhulukazi ezindaweni zokuxhumana eziphakathi kwe-carbonate namadayimane acidic noma ama-alkali lapho i-fluorine iqaliswe khona ngezinqubo ze-metasomatic. Lakhiwa lo hydration ka Olivine, (MG, Fe2 +) 2SiO4, futhi uzinzile kwibanga ngaphansi kwamazinga okushisa nezimo ezifaka labo ekhona ethile kuye isiphuku sakhe sokuthunjwa elingaphezulu.

I-Chondrodite, evela eMyanmar

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