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.