Moldavite roka ne na silica kore wanda aka kafa ta tasirin meteorite - bidiyo

Moldavite kore ne, koren zaitun ko shuɗi-kore dutsen vitreous dutsen da aka samu ta hanyar tasirin meteorite a kudancin Jamus kimanin shekaru miliyan 15 da suka wuce. Wannan nau'in tektite ne.

Sayi duwatsu na halitta a cikin kantinmu

A karo na farko, an gabatar da moldavite ga jama'ar kimiyya a cikin 1786. Kamar yadda chrysolites na Tyn nad Vltavou a cikin lacca na Josef Mayer daga Jami'ar Prague, wanda aka gabatar a wani taro na Czech Scientific Society Mayer 1788. Zippe a 1836. Moldavskaya Kogin da ke cikin Jamhuriyar Czech, daga inda aka fara bayyana samfurori.

Kayayyaki

Tsarin sinadaran SiO2 (+ Al2O3). Kaddarorinsa sun yi kama da na sauran nau'ikan gilashin, tare da da'awar taurin Mohs daga 5.5 zuwa 7. Yana iya zama bayyananne ko maras kyau tare da launin kore mai laushi, tare da swirls da kumfa suna haɓaka bayyanarsa. Ana iya bambanta dutse daga kore kwaikwayo na gilashi ta hanyar lura da tsutsotsi-kamar shigar da leschatellerite a cikinsu.

aikace-aikace

An kiyasta adadin duwatsun da suka warwatse a duniya ya kai tan 275.

Akwai maki uku na wannan dutse: high quality, sau da yawa ake magana a kai a matsayin gidan kayan gargajiya ingancin, matsakaici quality, kuma na yau da kullum. Ana iya bambanta duk digiri uku ta bayyanar. Yankuna iri-iri na gama-gari galibi sun fi duhu da tsananin kore, kuma ana tsinkayar saman a matsayin mai rami ko yanayi. Irin wannan nau'in wani lokaci yana ganin ya karye, sai dai galibi.

Duban gidan kayan gargajiya yana da nau'i mai kama da fern kuma ya fi bayyane fiye da yadda aka saba gani. Yawancin lokaci akwai babban bambanci mai girma tsakanin su. Ana amfani da duwatsu masu daraja sau da yawa don kayan ado na hannu.

A Cesky Krumlov a Jamhuriyar Czech akwai gidan kayan gargajiya na Moldovan, gidan kayan tarihi na Vltavin. An kafa Ƙungiyar Moldovan a Ljubljana, Slovenia a cikin 2014. Ƙungiyar ta tsunduma cikin bincike, nuni da haɓaka duwatsu a duniya kuma ta haɗa da membobin ƙasa daga ƙasashe fiye da 30.

Siyar da duwatsu masu daraja na halitta a cikin shagon mu