1. Kumaɲɔgɔnya fɛɛrɛw: Kumaɲɔgɔnya baara la, u be baara kɛ kosɔbɛ ni kristaliw ye minw be weele ko quartz ka fɛɛn jɔnjɔnw dilan i n’a fɔ osilatɛriw ani filɛrifɛnw, minw b’a to tagamasiɲɛw be yɛlɛma cogo basiginin na ani cogo tilennin na. Mobili ka kumaɲɔgɔnya, sateliti ka kumaɲɔgɔnya, ani fiyɛ-optiki kumaɲɔgɔnya bɛɛ be basigi kristali kuarzi fɛɛrɛ kan.
2. Kuranfɛnw: Kuarzi kristali fɛɛrɛ fana lɔyɔrɔ ka bon mɔgɔw ka kuranfɛnw baara la. Ɲɛyirali fɛ, lɛrɛw ani ɔridinatɛri minw be sɔrɔ minan hakiliman sifa caaman na, u mako be kristali quartz kɔnɔfɛnw na walisa ka wagati lɔn ka ɲɛ ani ka mankanw labɛn ka ɲɛ.