I-Glass Rock ithandwa isetyenziswa kwimveliso yokubonelela ngobomi, iphawulwe kwaye inombala. Iglasi yomhlaba eluhlaza luhlobo lwezixhobo zokwakha ezenziwe ngeglasi etyheliweyo. Yintsomi ye-vitreous enokudlula ngemini yokukhanya elula kwaye ikhuphe ukukhanya okuthambileyo ebusuku. Njengomzi-mveliso womthombo, sinokulawula ubungakanani benqanaba ngokungqongqo kwaye sithembise iphakheji ekhuselekileyo. Umbala odumileyo weeglasi zeglasi ziyathengiswa, luhlaza, icacile kwaye i-amber.
