Which is not a characteristic of minerals
a. are solids with a fixed shape and volume
b. are organic in nature
c. are naturally occuring
d. have a definite chemical position
e. have a definite crystal structure

I think d is wrong because  Everything else is correct for sure. also, minerals vary in the position they hold and have different chemical compounds.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

am i too late?

explanation: