Rocks and Minerals
This rock forms from cooled magma or lava.
What is an igneous rock?
Term used for economically valuable concentration of minerals.
What is ore?
Acidic water formed when rainwater seeps through mine waste piles?
What is acid mine drainage?
Cylindrical rock sample from drilling
What is core?
Element symbol for Gold
What is Au?
The scale used to compare mineral hardness.
What is Mohs hardness scale?
Waste material left after processing?
What are tailings?
The process of restoring land to a usable state after a mining process closes
What is reclamation, remediation, restoration, mitigation, etc.
Instrument used to measure subsurface density contrasts.
What is a gravimeter?
Most abundant element in Earth's crust?
What is oxygen?
Quartz's hardness?
What is 7?
What is a feasibility study?
Government funded process to reclaim mine lands.
What is superfund?
Process to determine mineral content of a sample?
What is assay?
Term for rock deformation without breaking?
What is ductile deformation?
Rock formed by heat and pressure?
What is metamorphic rock?
Term for the soil and rock that lies over a useful mineral deposit?
What is overburden?
This processed used to extract gold often poses risks of toxic contamination in water.
What is cyanide leaching?
Method using seismic waves to image underground?
Deposit formed by gravity separation in water?
What is a placer deposit?
Term for how a mineral reflects light?
What is luster?
Term for the collapse of land above underground mines?
What is subsidence?
The federal agency used to enforce safety and health in US Mines.
MSHA
Structure often shifting mineral deposits?
Science studying groundwater movement?
What is hydrogeology?