A ka c’a la, kuran kristalɛw bɛ tali kɛ kuran minɛn minɛnw na. Kuwari kristalɛw bɛ sɔrɔ cogo caman na, i n’a fɔ joli-sira-funu, kuransi cɛncɛn ani kuwarizi, wa u ye don o don seramiki yɔrɔ koloma dɔ ye. Kuwati ye fɛn ye min jɛnsɛnnen don kosɛbɛ Dugukolo kan, wa a suguya caman bɛ nɔba bila don o don seramiki fɛnw dilanni na.
Quartz ni cɛncɛn ni kristalɛ jɛlen bɛ jɛɲɔgɔnya jugu la; u bɛɛ bɛ bɔ fɛn kelen na-siliyɔmu gazi. Kuwasi, i n’a fɔ kristalɛ ni agati, o ye siliyɔmu gazi suguya dɔ ye, nka fɛnɲɛnamafagalan suguya wɛrɛw bɛ sɔrɔ kristalizecogo wɛrɛw fɛ. Ni siliyɔmu gazi ye kristali kɛ ka se cogo dafalen na, a bɛ kɛ kristali ye. Ni siliyɔmu gazi ye jeli ni farikolojidɛsɛ kɛra, a bɛ kɛ agati ye. Wa ni silisi koloma jilamaw bɛ gɛlɛya, opal bɛ sɔrɔ. Ka fara o kan, ni siliyɔmu gazikisɛ kisɛw ka dɔgɔn ni mikron damadɔ ye, fɛn caman bɛ se ka ɲɔgɔn falen i n’a fɔ kalsedɔni, flint ani kuarziti filanan.