Crystalline

[cassandral]

What name is given to crystalline elements/compounds of which rocks are made?

[rekstout]

silica or silicates maybe

[j2buttonsw]

Magma and the full answer is: BWLBMMMMMMTMMMMX

[xyzzy@bok]

and quartz?

[Hamish]

minerals

[Gef]

Well said hamish, I think j2b has lost the plot!

[j2buttonsw]

It is a question for that infernal Net Riddle quiz (along with the Great Expectations question that cassandral has also posted). Hamish is very likely to be right, the important thing is that both answers begin with M. I just gave the complete answer to all of the questions in that Net Riddle section to avoid the further posting of Net Riddle questions. Perhaps I should have explained further in my original post.

[Gef]

Thanks for that j2b. Personally I have no interest in the Net Riddle thing, as a whole, and will sometimes post answers/comments simply because I find the question interesting but have no idea that it's a Net Riddle thing.