Contrary to popular belief, opal is not a type of quartz, but it is a type of silica related to quartz. It is common for different types of opal to have different colours, but to this is indeed a dazzling display.
Contrary to popular belief, opal is not a type of quartz, but it is a type of silica related to quartz. It is common for different types of opal to have different colours, but to this is indeed a dazzling display.
Andrei's background is in geophysics, and he's been fascinated by it ever since he was a child. Feeling that there is a gap between scientists and the general audience, he started ZME Science -- and the results are what you see today.