Opal

Doublet opal Rau kev siv gemstone, feem ntau opal yog txiav thiab polished tsim ib cabochon. Opal tau hais txog pob zeb polished muaj ... Nyeem ntxiv

Hluavtaws Aurora opal Fine Crystalline Opals nrog lub Non-Directional Txawv ntawm Play-of-Color Aurora opals muaj nyob hauv cov xim txawv li dub opals ... Nyeem ntxiv

Synthetic opal Opals ntawm tag nrho cov ntau yam tau raug synthesized experimentally thiab muag. Tus foundations ntawm tus kheej kheej qauv ntawm cov opal muaj nqi ... Nyeem ntxiv

Miv lub qhov muag opal Ib tug miv qhov muag opal yog ib qho yeeb yam nrog tus miv lub qhov muag pom tshwm rau saum lub pob zeb thaum ... Nyeem ntxiv

video no gemstone yog feem ntau dawb lias xiav rau ntsuab. Feem ntau cov Jewelers piav txog nws raws li cov xim ntawm lub hiav txwv Caribbean. Cov pob zeb ... Nyeem ntxiv

video Opal yog ib daim phais ntawm cov kua silica (SiO2 · nH2O); nws cov dej ntsiab lus yuav muaj ntawm 3 rau 21% los ntawm qhov hnyav, tab sis ... Nyeem ntxiv

Welo Opal Peb paub txog thaum kawg Australian Opals. Tab sis rau ob peb xyoos ib tug tshiab opal apeare. Lub Welo opal. Qhov no ... Nyeem ntxiv

Hluav taws Opal, los ntawm Mexico video Hluav taws xob opal yog lub pob tshab rau translucent opal, nrog sov lub cev xim daj rau txiv kab ntxwv rau ... Nyeem ntxiv

Boulder Opal, los ntawm Australia video Opal yog ib daim ntaub ntawm cov kua silica (SiO2 · nH2O), nws cov dej cov ntsiab lus yuav yog los ntawm 3 rau ... Nyeem ntxiv

Dyed Opal Ntau Ethiopian opals raug muag nyob rau hauv lawv lub xeev ntuj, thiab qee qhov dyed opal kho. Lawv cov porosity ua rau lawv zoo ... Nyeem ntxiv