A somewhat important factor, that is never the only thing that we look at.
What is colour?
This type of rock is created when lava cools and hardens.
What is igneous rock?
Chemical factors, like acid rain, breaking down rocks.
What is chemical weathering?
When a minerals concentration is high enough worth mining it is known as.
What is ore?
The layer of earth that is below the crust and consists of some rock, but mostly magma.
What is the mantle?
When a mineral has the ability to reflect some light.
What is lustre?
This type of rock forms under extensive heat and pressure.
What is metamorphic rock?
Physical factors breaking down rocks, like water seeping into cracks and freezing.
What is mechanical weathering?
When the mineral we seek to mine is close to the surface we use what mining technique?
What is open pit mining?
What is a diverging boundary?
The scratch test is used to determine this property.
What is hardness?
The formation of this rock types includes the process of compaction and cementation.
What is sedimentary rock?
Biotic(living) factors breaking down rocks.
What is biological weathering?
If the mineral is deep in the crust of the earth we use this mining technique.
What is underground mining?
Two tectonic plates coming together, results in mountains, earthquakes, trenches, and sometimes volcanoes.
What is a convergent boundary?
A powdery _______ left behind when rubbing a mineral against a unglazed porcelain tile.
What is streak?
Pure, naturally occurring materials. They contain only one element.
What are minerals?
Melting any of the three rock types creates this thing.
What is magma/lava?
Canada is the number one producer of this mineral and there are large deposits of it in Saskatchewan.
What is potash?
Two tectonic plates moving past one another, sometimes catching and causing an earthquake.
What is a transform boundary?
The two classifications for how minerals tend to break.
What are cleavage and fracture?
Magma cools and hardens in the earth's crust, creating what kind of rock.
When any of the three rock types are weathered, it creates what?
This rock is an indicator that there could be diamonds in this area.
What is kimberlite?
Gas and ash from a volcano, burns everything in its path, and moves roughly 200km/hr.
What is pyroclastic flow?