I-Obsidian iyingilazi yemvelo yentaba-mlilo eyakhiwe lapho udaka olupholile olupholile luqina. Ku-snowflake obsidian, amaqoqo anombala okhanyayo, amakristalu afana nenaliti e-cristobalite ezindaweni eziphukile afana namakhekheba eqhwa.
Lokhu kufakwa kuhlu okombhoshongo/iphoyinti leqhwa elilodwa elilingana nosayizi abashiwo ngenhla. Uzothola into efana naleyo esesithombeni. Lonke ucezu luhlukile futhi zonke izingcezu ezitholiwe ngeke zifane ncamashi nosayizi, umumo, imibala, noma zibukeke zifane njengoba kubonakala ezithombeni zethu.
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