Because opal and borosilicate glass have similar coefficients of expansion (how much they expand under heat) we thought it would be awesome to experiment with trying to imbed and encase opals in borosilicate. The results were pretty stunning! — — — — — #science #sciences #scienceart #sciencefacts #edu #educational #education #stem #steam #experiment #experiments #nickuhas #glass #glassart #blowingglass #glassblowing #opal #opals #opalmining #mining #flamework #flameworking #borosilicate