I-Obsidian iyingilazi yentaba-mlilo eyakha i-viscous lava. Lawa makristalu aziwa kakhulu anokwephuka kwe-conchoidal, okusho ukuthi aphuka/ama-chips ngendlela engavamile endaweni egobile, okuwenza abe into efanelekile yokwakha amathuluzi abukhali. I-Obsidian ivamise ukuba mnyama opaque kodwa ingaba namaphethini nemibala ehlukahlukene.
Lokhu kufakwa kuhlu okwekhanda lomcibisholo owodwa omnyama we-obsidian kusayizi olinganiselwe 1.5″ ukuya ku-2″ (sikhetha ngokungahleliwe). 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.
Isibambi sesibonisi SIDAYISWA NGOKUHLUKILEYO. I-$3.95 iyinani lomcibisholo owodwa.
Le nto ibukhali futhi ingasika. Sicela uqiniseke ukuthi zonke izingane zigadiwe ngenkathi uphatha le nto.
Azikho izinkinga ekuthunyelweni, kupakishwe kuvikelwe kahle futhi iyisiqephu esihle.