Chondrodite, kuchokera ku Myanmar

Chondrodite Myanmar

Gemstone Info

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Chondrodite, kuchokera ku Myanmar

kanema

Chondrodite ndi mchere wosakaniza ndi mchere (Mg, Fe) 5 (SiO4) 2 (F, OH, O) 2. Ngakhale kuti ndizochepa mchere, nthawi zambiri zimakumana ndi mchere wa mchere. Amapangidwa mu dipatimenti yotchedwa hydrothermal deposits kuchokera kumalo amtundu wa metamorphosed dolomite. Amapezedwanso ndi skarn ndi serpentinite. Idapezeka mu 1817 pa Mt. Somma, gawo la Vesuvius complex in Italy, ndipo amatchulidwa kuchokera ku Chigiriki kuti "granule", yomwe ndi chizolowezi chofala cha mchere.

chilinganizo

Mg5 (SiO4) 2F2 ndi mamembala omaliza omwe amaperekedwa ndi International Mineralogical Association, misala ya 351.6 g. Kawirikawiri pali OH mu F, koma Fe ndi Ti amatha kukhala m'malo mwa Mg, choncho mchere wa mchere umakhala wabwino kwambiri (Mg, Fe, Ti) 5 (SiO4) 2 (F, OH, O ) 2.

mtundu

Chondrodite ndi magnetite, Tilly Foster wanga, Brewster, New York, USA
Chondrodite ndi wachikasu, lalanje, wofiira kapena wofiira, kapena wosaoneka wosaoneka bwino, koma kuyika kwa mitundu yosiyanasiyana yawonekedwe ndi yowonongeka, ndipo mbale zamkati za chondrodite, humite, clinohumite, forsterite ndi monticellite zafotokozedwa.

Zowoneka bwino

Chondrodite ndi biaxial (+), ndi zizindikiro za refractive zinalembedwa ngati n = = 1.592 - 1.643, nβ = 1.602 - 1.655, nγ = 1.619 - 1.675, birefringence = 0.025 - 0.037, ndi 2V imayeza ngati 64 ° mpaka 90 °, ikuwerengedwa: 76 ° kwa 78 °. Nyerere za refractive zimayamba kuwonjezeka kuchokera ku norbergite mpaka ku clinohumite mu gulu la anthu. Amawonjezeranso ndi Fe2 + ndi Ti4 + ndi (OH) - m'malo mwa F-. Kufalikira: r> v.

Environment

Chondrodite imapezeka makamaka m'makina a metaborphic pakati pa carbonate miyala ndi acidic kapena zamchere intrusions komwe kutuluka kwa fluorine ndi njira zamagetsi. Zimapangidwa ndi hydration ya olivine, (Mg, Fe2 +) 2SiO4, ndipo imakhala yokhazikika pamtambo wotentha ndi zovuta zomwe zimaphatikizapo zomwe zili m'mbali mwa chovala chapamwamba.

Chondrodite, kuchokera ku Myanmar

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