I-Moldavite iyirokhethi ye-silica eluhlaza eyakhiwe umthelela we-meteorite - ividiyo
Okuqukethwe:
I-Moldavite iyidwala eliluhlaza okotshani, eliluhlaza okotshani noma eliluhlaza okwesibhakabhaka le-vitreous elakhiwe umthelela we-meteorite eningizimu yeJalimane eminyakeni eyizigidi eziyi-15 edlule. Lolu uhlobo lwe-tektite.
Thenga amatshe emvelo esitolo sethu
Ngokokuqala ngqa, i-moldavite yethulwa emphakathini wesayensi ngo-1786. Njengama-chrysolite kaTyn nad Vltavou enkulumweni kaJosef Mayer waseYunivesithi yasePrague, eyanikezwa emhlanganweni we-Czech Scientific Society Mayer 1788. Zippe ngo-1836. Moldavskaya Umfula eCzech Republic, lapho kwavela khona izibonelo zokuqala ezichazwe.
Izakhiwo
Ifomula yekhemikhali i-SiO2 (+ Al2O3). Izakhiwo zayo ziyefana nezinye izinhlobo zengilazi, ezinobulukhuni be-Mohs obufunwayo obusukela ku-5.5 kuya ku-7. Ingacaca noma ikhanye ibe nombala oluhlaza okotshani, okuphenduphenduka namabhamuza okugqamisa ukubukeka kwayo okune-mossy. Itshe lingahlukaniswa nokulingisa okuluhlaza kwengilazi ngokubheka ukufakwa okufana nezimpethu kwe-leschatellerite kuzo.
uhlelo lokusebenza
Isamba samatshe asabalele emhlabeni wonke silinganiselwa ku-275 tons.
Kunamabanga amathathu aleli tshe: izinga eliphezulu, elivame ukubizwa ngokuthi ikhwalithi yemnyuziyamu, ikhwalithi ephakathi, futhi evamile. Womathathu amadigri angahlukaniswa ngokubukeka. Izingcezu zezinhlobonhlobo ezijwayelekile zivame ukuba mnyama futhi zibe luhlaza kakhulu, futhi indawo engaphezulu ibonwa njengegobolondo noma isimo sezulu. Lolu hlobo ngezinye izikhathi lubonakala luphukile, ngaphandle kwengxenye enkulu.
Ukubuka kwemnyuziyamu kunephethini efana ne-fern ehlukile futhi isobala kakhulu kunokubuka okuvamile. Ngokuvamile kunomehluko omkhulu wamanani phakathi kwazo. Amatshe ekhwalithi ephezulu avame ukusetshenziselwa ubucwebe bezandla.
ECesky Krumlov eCzech Republic kukhona imnyuziyamu yaseMoldova, iVltavin Museum. I-Moldovan Association yasungulwa e-Ljubljana, eSlovenia ngo-2014. Inhlangano imatasatasa ocwaningweni, embukisweni nasekugqugquzeleni amatshe emhlabeni jikelele futhi ihlanganisa namalungu e-geological avela emazweni angaphezu kuka-30.
shiya impendulo