Any notable length of infilled mineralization
Any notable length of infilled mineralization
Characteristic colour patterns in usually sedimentary rock
A gray to white, ductile, metal. Symbol, V
Benefit minus cost
Gold which may be identified visually, unaided
Another term for the thickness of a liquid substance
A naturally occurring red pigment from mercuric sulphide or iron oxide
An opening in the Earth to facilitate the flow of volcanic fluids, gases and materials
A small cavity occurring in rock, through trapped gases and/or internal crystallization
Any material of volcanic origin