Lu'u-lu'u masu nuna haske a kan hanya wani nau'i ne na ƙananan ƙwayoyin gilashi da aka samar ta hanyar sake amfani da gilashin a matsayin kayan da aka ƙera, waɗanda aka niƙa sannan aka narke a zafin jiki mai yawa ta hanyar iskar gas, wanda ake gani a matsayin wani yanki mara launi da haske a ƙarƙashin na'urar hangen nesa. Ma'aunin haskensa yana tsakanin 1.50 da 1.64, kuma diamitarsa gabaɗaya yana tsakanin microns 100 da microns 1000. Lu'u-lu'u na gilashi suna da halaye na siffar zagaye, ƙananan ƙwayoyin cuta, daidaito, bayyanawa da juriya ga lalacewa.
An gano beads na gilashi masu haske a kan hanya a matsayin alamar hanya (fenti) a cikin kayan haske, wanda zai iya inganta aikin fenti na alamar hanya, inganta amincin tukin dare, don sassan sufuri na ƙasa. Lokacin da mota ke tuki da dare, fitilolin mota suna haskaka layin alamar hanya tare da beads na gilashi, don haka hasken daga fitilolin mota za a iya mayar da su a layi ɗaya, don haka yana ba direba damar ganin alkiblar ci gaba da inganta amincin tukin dare. A zamanin yau, beads na gilashi masu haske sun zama kayan haske da ba za a iya maye gurbinsu ba a cikin kayayyakin aminci na hanya.
Bayyanar: tsabta, mara launi da kuma bayyananne, mai haske da zagaye, ba tare da kumfa ko ƙazanta bayyananne ba.
Zagaye: ≥85%
Yawan yawa: 2.4-2.6g/cm3
Fihirisar haske: Nd≥1.50
Abun da ke ciki: gilashin lemun tsami na soda, abun ciki na SiO2 > 68%
Yawan yawa: 1.6g/cm3