Poudretteite yog tshiab hom pob zeblos ntawm Poudrette chaw txua txiag zeb, Mont Saint-Hilaire, Quebec. Nws tshwm sim hauv marble xenolith suav nrog nepheline syenite, txuam nrog pec-tolite, apophyllite, quartz thiab me aegirine. Nws ua kom pom tseeb, tsis muaj xim mus rau daj ntseg liab, equidimensional, subhedral prisms txog li 5 hli.
Dab tsi yog lub pob zeb uas tsis tshua muaj neeg nyob hauv ntiaj teb?
Taaffeite yog suav tias yog cov siv lead ua tsis tshua muaj nyob hauv ntiaj teb vim tias tsuas muaj 50 tus qauv paub txog cov pob zeb no tsis tshua muaj. Thaum Taaffeite tau pom thawj zaug hauv xyoo 1945 los ntawm Irish gemologist Edward Taafe (lub npe tsis tshua muaj siv lead ua), nws pib xav tias nws yog spinel.
Lub pob zeb tsis tshua muaj dab tsi?
Musgravite. Musgravite tau pom nyob rau hauv 1967 thiab yog qhov sib cav tsis tshua muaj pob zeb hauv ntiaj teb. Nws tau pom thawj zaug hauv Musgrave Ranges, Australia, thiab tom qab ntawd pom hauv Madagascar thiab Greenland. Thawj lub pov haum zoo tshaj plaws tau pom nyob rau xyoo 1993.
Grandidierite gemstone yog dab tsi?
Ib qho ntawm cov pob zeb uas tsis tshua muaj nyob hauv lub ntiaj teb, grandidierite yog a xiav-ntsuab mus rau ntsuab-xiav pob zebuas tau pom thawj zaug hauv xyoo 1902. Pom hauv Madagascar los ntawm Alfred Lacroix, nws tau muaj npe nyob rau hauv kev hwm ntawm Alfred Grandidier, tus kws tshawb fawb Fab Kis lub luag haujlwm rau kev qhia ntau yam ntawm Madagascar cov keeb kwm ntuj tsim thiab kos npe rau nws thaj av.
Puas Grandidierite kim?
Grandidierite ((Mg, Fe 2+)Al 3(BO3)(SiO 4)O 2) is a very rare gem that nco tau mus txog $20,000 ib carat thiab tau pom thawj zaug hauv Madagascar xyoo 1902.
