Miv lub qhov muag danburite

miv lub qhov muag danburite

Gemstone Info

Gemstone Nqe Lus

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Miv lub qhov muag danburite

Danburite yog calcium boron silicate mineral nrog ib hom tshuaj ntawm CaB2 (SiO4) 2.

Nws lub npe tau los ntawm Danbury, Connecticut, Tebchaws Asmeskas, uas nws tau pom thawj zaug hauv 1839 los ntawm Charles Upham Shephard.

Danburite tuaj yeem tshwm sim nyob rau hauv ntau yam xim xws li tsis muaj xim tsis tshua xim-liab dawb thiab los ntawm lub teeb daj mus rau xim av. Tab sis feem ntau tsuas yog tsis muaj xim tsis txhawj xeeb yog puas tau los ua ib lub pov haum.

Nws muaj ib qho kev nyuab siab ntawm 7 rau 7.5 thiab ib qho tseem nqus ntawm 3.0. Cov pob zeb hauv av kuj muaj ib daim ntaub thaiv duab ntxoov ntxoo. Nws feem ntau tsis muaj xim, zoo li quartz, tab sis kuj tuaj yeem daj ntseg daj los yog xim daj-xim av. Nws feem ntau tshwm sim nyob rau hauv kev sib txuas lus hu ua metamorphic pob zeb.

Dana cov kev faib tawm ntawm cov zaub mov muaj categorizes danburite ua ib tus sorosilicate, thaum lub Strunz classification tswvyim teev nws ua ib lub tectosilicate. Ob cov lus muaj tseeb.
Cov khoom siv sib xyaw ua pa thiab daim ntawv zoo ib yam li topaz; Txawm li cas los xij, topaz yog calcium fluorine bearing nesosilicate. Qhov meej, resilience, thiab muaj zog dispersion ntawm danburite ua nws tseem ceeb li hla lub pob zeb rau hniav nyiaj hniav kub.

Miv lub qhov muag pom kev

Nyob rau hauv lub pov haum, sib tham, sib tham, los yog kev sib tham hauv tus miv, yog qhov pom ntawm qhov kev xav pom hauv cov gemstones. Coined los ntawm Fabkis "oeil de chat", lub ntsiab lus "miv lub qhov muag", sib tham tshwm sim los ntawm lub qauv fibrous ntawm ib yam khoom, raws li nyob rau hauv miv lub qhov muag tourmaline, los ntawm fibrous inclusions los yog kab noj hniav tsis pub dhau lub pob zeb, raws li nyob rau hauv miv lub qhov muag chrysoberyl. Lub cev ceev ceev uas ua rau sib tham yog cov koob. Cov ntaub ntawv kuaj pom tau tsis muaj pov thawj ntawm cov hlab ntsha los yog cov fibers.The koob precipitates txhua align perpendicularly txoj cai rau miv lub qhov muag nyhuv. Lub lattice parameter ntawm koob yuav ntais tsuas yog ib qho ntawm peb txoj kab orthorhombic siv lead ua ntawm cov chrysoberyl, raws li ib qho kev sib haum xeeb raws li qhov kev coj no.

Cov phenomenon zoo li lub brilliance ntawm ib cov lus silk. Qhov luminous streak ntawm reflected teeb yog ib txwm perpendicular mus rau kev coj ntawm lub fibers. Rau lub gemstone los qhia cov nyhuv no zoo dua, cov duab yuav tsum yog ib tug cabochon. Hloov nrog rau lub hauv paus uas tsis paub, tsis yog lub ntsej muag, nrog cov fibers lossis fibrous cov khoom sib luag mus rau lub hauv paus ntawm lub tiav pob zeb. Qhov zoo tshaj plaws tiav nrws qhia ib zaug. Ib lub teeb ntawm lub teeb uas txav mus hla lub pob zeb thaum nws puv. Tshawb nrhiav lub pob zeb ntawm cov khoom qis me dua hauv cov khoom zoo li muaj qhov ntsej muag nrog cov xim daj ntseg. Faceted pob zeb tsis qhia cov nyhuv zoo.

Miv lub qhov muag txhaumurit los ntawm Madagascar

yuav natural gemstones hauv peb lub khw

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