2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Localities. Lub pov haum thiab cov qauv tourmaline yog mined tseem ceeb hauv Brazil thiab ntau qhov chaw ntawm Africa, suav nrog Tanzania, Nigeria, Kenya, Madagascar, Mozambique, Malawi, thiab Namibia.
Lub teb chaws twg muaj tourmaline tshaj plaws?
Lub Tebchaws Tsim Khoom
Ntau lub ntiaj teb tourmaline los ntawm kev tso nyiaj hauv Brazil. Lwm lub tebchaws tsim muaj xws li: Mozambique, Madagascar, Namibia, Tanzania, Afghanistan, Pakistan, Russia, thiab Tebchaws Meskas. Tourmaline crystals feem ntau tsim nyob rau hauv pegmatites.
Tourmaline ntau npaum li cas?
Qhov tshwm sim feem ntau ntawm tourmaline yog ib qho khoom siv ntxhia hauv cov pob zeb tsis zoo thiab cov pob zeb metamorphic. Nws feem ntau tshwm sim li millimeter-loj crystals tawg los ntawm granite, pegmatite, los yog gneiss. Hauv hom kev tshwm sim no, tourmaline tsis tshua muaj ntau tshaj li ob peb feem pua ntawm cov pob zeb ntim.
Puas yog tourmaline lub pov haum kim?
Tus nqi ntawm tourmaline sib txawv heev, nyob ntawm ntau yam thiab zoo. Tus nqi kim tshaj plaws yog Paraíba tourmalines, uas tuaj yeem ncav cuag kaum txhiab nyiaj ib carat. Chrome tourmalines, rubellites thiab nplua indicolites thiab ob-xim yuav muag tau ntau npaum li $ 1000 / ct. los yog ntau tshaj.
tourmaline thawj zaug pom qhov twg?
Keeb Kwm ntawm Tourmaline. Lub pob zeb tau pom thawj zaug los ntawm Cov tub lag luam Dutch tawm ntawm West Coast ntawm Ltalisnyob rau xyoo 1600 lossis thaum ntxov 1700's. Thaum lub sij hawm, cov ntsuab tourmalines tau xav tias yuavemeralds. Nws tsis yog txog thaum xyoo 1800 thaum cov kws tshawb fawb pom tau tias cov pob zeb no yog lawv hom pob zeb.
Pom zoo:
Bryophytes feem ntau pom nyob qhov twg thiab vim li cas?
Bryophytes tau suav tias yog kev hloov pauv ntawm cov nroj tsuag dej xws li algae thiab cov av siab dua cov nroj tsuag zoo li ntoo. Lawv yog cov nyob ntawm dej heev rau lawv txoj sia nyob thiab kev yug me nyuam thiab yog li ntawd feem ntau pom nyob rau hauv thaj chaw moist xws li creeks thiab hav zoov.
Qhov twg yuav pom minbar feem ntau yuav pom?
Lub minbar nyob rau sab xis ntawm mihrab, ib lub niche nyob rau hauv lub phab ntsa deb ntawm lub mosque uas cim cov kev taw qhia ntawm kev thov Vajtswv (piv txwv li mus rau Mecca). Nws feem ntau zoo li tus pej thuam me me nrog lub rooj zaum lossis kiosk zoo li tus qauv ntawm nws sab saum toj thiab ib lub staircase ua rau nws.
Zirconium feem ntau pom nyob qhov twg hauv ntiaj teb?
Nyob ntiaj teb, qhov chaw rau zirconium feem ntau yog cov ntxhia zircon thiab baddeleyite (zirconium dioxide zirconium dioxide Zirconia tuaj yeem siv ua photocatalyst txij li nws qhov sib txawv siab (~ 5 eV)tso cai tiam ntawm cov muaj zog electrons thiab qhov.
Stilbite feem ntau pom nyob qhov twg?
Stilbite muaj ntau nyob rau hauv pob zeb volcanic ntawm Iceland, Faroe Islands, Isle of Skye, Bay of Fundy, Nova Scotia (qhov twg nws yog lub xeev cov ntxhia), sab qaum teb New Jersey thiab North Carolina. Zeolite tuaj yeem pom qhov twg?
Pyrrhotite feem ntau pom nyob qhov twg?
Pyrrhotite pom nrog pentlandite hauv cov pob zeb tsis muaj zog, leeg, thiab cov pob zeb metamorphic. Nws kuj tseem pom muaj pyrite, marcasite, thiab magnetite. pom pyrrhotite nyob qhov twg? Kev piav qhia: Pyrrhotite muaj nyob hauv ntau yam ntawm hydrothermal deposits.
