I-agate iwuhlobo lwamaminerali e-chalcedony, evame ukuxutshwa ne-opal ne-cryptocrystalline quartz banded block, ubulukhuni obungu-6.5-7 degrees, amandla adonsela phansi athile angu-2.65, umbala uyahlukahluka kakhulu.Ukuba nokukhanya noma ukukhanya.