Ah yes, I see the inclusion of organic material. Hmmmm... not sure I agree, but not really worth arguing it. As for the clays, I was simply elaborating a bit for the readers. Not everyone knows clays can also be minerals.
Hey, Rox, long time no talk...
Well, I may be old-school, but while amber may be a mineraloid it cannot be a mineral. It does not have a regular, repeating crystal structure.