Igolide ebonakalayo

yegolide ebonakalayo

Ulwazi loGugu

Inkcazo yeGemstone

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Igolide ebonakalayo

Igolide ye-obsidian, ekwabizwa ngokuba yigolide ye-sheen obsidian okanye i-sheen obsidian ilitye elineepatheni zeebhombu zegesi, ezisele zisuka ekuhambeni kokuhamba kwe-lava, zilungelelaniswe ecaleni kweziseko ezenziwe njengoko ilitye elinyibilikileyo lalisihamba ngaphambi kokuphola. Ezi bhabhathane zivelisa iziphumo ezinomdla zikhangeleka ngathi sheen yegolide.

Obsidian

I-Obsididi iglasi ekhuphuka ngokwemvelo eyenziwe njengelitye eligqithisayo.
Imveliso iveliswa xa iflishi yegqabi eligqithisiweyo ukusuka kwintaba-mlilo iphola ngokukhawuleza ngokukhula okuncinci kweekristalu. Ihlala ifunyanwa ngaphakathi kwimida yokuhamba kwerabha yento ebaleka yaziwa ngokuba kukuhamba kwethayile, apho ukumiliselwa kweekhemikhali, umxholo ophezulu we-silica kubangela ukubonakala okuphezulu okuthi, xa kupholile ngokukhawuleza, kwenziwe iglasi yendalo evela kumdaka. Ukuthintelwa kokungqubana kweatom ngokusebenzisa le lava ye-viscous icacisa ukungabikho kokukhula kwekristali. I-Obsidiyani ilukhuni, ayisi brittle, kwaye ineamorphous, yiyo ke loo nto iqabaka kakhulu. Kwixesha elidlulileyo lalisetyenziselwa ukwenza izixhobo zokusika nokubhoboza kwaye bezisetyenziswa ngokwamayeza njengamachaphaza e-scalpel blade.

Njengesimbiwa

Ayisiyoiminerali eyinyani kuba njengeglasi ayisiyi-kristali, ukongeza, ukwakheka kwayo kwahluka kakhulu ukuba kungabekwa njengeminerals. Ngamanye amaxesha ihlelwa njenge mineraloid. Nangona i-obsidian ihlala imnyama ngombala, ifana namatye e-mafic afana ne-basalt, ukwakheka kwe-obsidian kuyinto felsic kakhulu. I-Obsidian iqulethwe ikakhulu yi-SiO2, i-silicon dioxide, ihlala i-70% okanye nangaphezulu. Amatye e-Crystalline anokwakhiwa kwe-obsidian abandakanya i-granite kunye ne-rhyolite. Kungenxa yokuba i-obsrian iyadibana kumphezulu woMhlaba, ekuhambeni kwexesha iglasi iba ziinkristalu zentsimbi ezimiliselwe kakuhle, akukho kufunyanwayo kwaudala kungaphezulu kobudala beCretaceous. Oku kuqhekeka kwe-obsidian kuyakhawuleziswa bubukho bamanzi. Ukuba nomxholo wamanzi asezantsi xa kusenziwa into entsha, ngesiqhelo ingaphantsi kwe-1% yamanzi ngesisindo, i-obsidian iba nenkqubela phambili xa ivulelwe amanzi asemhlabeni, yakha i-perlite.

Indawo yegolide ebonakalayo

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