Grossular

Gemstone Info

Gemstone Nqe Lus

Grossular

Yuav cov khoom hessonite hauv peb lub khw


Grossular yog ib hom kab mob calcium-aluminium ntawm cov pawg pob zeb ntawm cov zaub mov. Nws muaj cov tshuaj formula ntawm Ca3Al2 (SiO4) 3 tab sis calcium tej zaum, nyob rau hauv ib feem, yuav hloov los ntawm ferrous hlau thiab txhuas los ntawm ferric hlau. Lub npe grossular yog muab los ntawm botanical lub npe rau lub gooseberry, grossularia, nyob rau hauv reference rau ntsuab garnet ntawm no composition uas yog pom nyob rau hauv Siberia. Lwm txoj kev ntxoov ntxoo muaj xws li cinnamon brown (cinnamon ntau pob zeb), liab, thiab daj. Grossular yog ib lub pov haum. nws cov streak yog brownish dawb

Nyob hauv cov ntaub ntawv keeb kwm, grossular feem ntau tau hu ua grossularite. Txij li thaum 1971, txawm li cas los xij, siv lub sij hawm grossularite rau hauv cov ntxhia raug kev poob siab los ntawm International Mineralogical Association.

Hessonite

Hessonite los yog "cinnamon pob zeb" yog ntau hom grossular nrog rau cov qauv mis: Ca3Al2Si3O12. Lub npe los ntawm lub Ancient Greek: hesson, lub ntsiab lus tsis zoo, ib tug allusion rau nws qis zog thiab txo qis tshaj li ntau lwm hom ntoo garnet.

Nws muaj tus cwj pwm liab xim, inclining rau txiv kab ntxwv los yog daj, zoo li cov zircon. Nws tau qhia ntau xyoo dhau los, los ntawm Sir Arthur Herbert Koom Txoos, hais tias ntau lub pob zeb, tshwj xeeb tshaj yog cov ntawv nyeem (feem ntau saib raws li zircon), lawv tau hessonite. Qhov txawv yog nkag tau los ntawm qhov kev nqus, qhov ntawm hessonite yog 3.64 rau 3.69, thaum uas zircon txog 4.6. Hessonite muaj kev ntxhov siab zoo ib yam li ntawm quartz (ua txog 7 rau ntawm qhov kev sib dhos mohs), thaum lub zog ntawm cov feem coob ntawm cov qauv garnet yog ze dua 7.5.

Hessonite los ntawm chiefly Sri Lanka thiab Is Nrias teb, qhov twg nws pom muaj feem ntau hauv placer deposits, tab sis nws tshwm sim nyob rau hauv nws haiv neeg matrix yog tsis paub. Nws kuj muaj nyob hauv Brazil thiab California.

deposits

Grossular muaj nyob hauv cov metamorphosed limestones hu ua vesuvianite, diopsy, wollastonite thiab wernerite.

Ib co sought tom qab ntau lub pov haum garnet yog nplua ntsuab Grossular garnet ntawm Kenya thiab Tanzania hu ua tsavorite. Qhov no garnet tau pom nyob rau hauv 1960s hauv Tsavo cheeb tsam ntawm Kenya, uas lub pov haum yuav siv nws lub npe.

Viluite yog ntau lub npe ntawm grossular, uas tsis yog ib hom kabmob mineral. Nws yog feem ntau cov txiv ntseej ntsuab tab sis qee zaus brownish los yog reddish, coj los ntawm impurities nyob rau hauv cov siv lead ua. Viluite yog txuam nrog thiab zoo ib yam li hauv vesuvianite, thiab muaj kev tsis sib haum xeeb hauv cov lus teb raws li viluite tau ntev tau siv los ua ib tus synonym rau wiluite, ib qho kev simosilicate ntawm pawg vesuvianite. Qhov kev ntxhov siab nyob hauv keeb kwm hnub rov qab rau James Dwight Dana. Nws los ntawm Vilyuy dej cheeb tsam hauv Siberia.

Grossular paub los ntawm ntau lub npe, thiab tseem qee tus neeg ua haujlwm, colophonite - coarse granules ntawm garnet, ernite, gooseberry-garnet - lub teeb ntsuab dawb thiab translucent, olyntholite / olytholite, romanzovite, thiab tellemarkite. Misnomers muaj xws li South African jade, garnet jade, Transvaal jade, thiab African jade.

Grossular garnet, los ntawm Mali


Yuav cov khoom hessonite hauv peb lub khw

kev ua yuam kev: Cov ntsiab lus yog kev tiv thaiv !!