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Ancient plant and animals fossilized in opal look amazing. Opal is made of tiny spheres of silicon I have no idea why I didn't know that all these years I gues
by dghughes 10y ago
Ancient plant and animals fossilized in opal look amazing.
Opal is made of tiny spheres of silicon I have no idea why I didn't know that all these years I guess to me opal never looked like dull grey silicon.
- andrewflnr 10y agoOpal is made of small spheres of silica, SiO2, the same material as quartz.
- dghughes 10y agoAww :( Well I was 33% right.
- andrewflnr 10y agoMore than that, by mass anyway. :)