Natural or manmade materials used to fill cavities created for the exploration or development of more valuable mineral substances
Natural or manmade materials used to fill cavities created for the exploration or development of more valuable mineral substances
The exposed end or start of a mineral body
The initial reconnaissance of geology performed by direct observation
Visual and preliminary classification of rock samples collected on-site, prior to formal geochemical analysis
Minerals that occur in strings, strands, threads or fibers, such as asbestos
A terms used to describe a substance containing iron
A term that describes light-colored volcanic rocks containing feldspar
A group of common igneous rocks with constituent elements forming minerals that includes microcline, orthoclase, plagioclase and others
The calculated speed of drill bit advancing through rock or overburden
A report compiling qualified information used to determine the viability of developing a mineral deposit based on the extent of risk involved