has quality
rock
SWEETRealm:Rock
https://en.wikipedia.org/wiki/Rock
TGN:21444
Geonames:T.RK
From https://en.wikipedia.org/wiki/ [A mineral] is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition. The exact definition of a mineral is under debate, especially with respect to the requirement a valid species be abiogenic, and to a lesser extent with regards to it having an ordered atomic structure.
EcoLexicon:rock
FTT:1010
FTT:145
Geonames:T.RKS
A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids.
mineral material
solid environmental material
hard