A large and significant region of Precambrian rocks in eastern Canada
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Category: <span>C</span>
A recess in the floor of a mine designed to prevent the leakage of minerals.
The oldest system into which the Paleozoic rock is classified
A substance introduced to a reaction to modify the characteristics of the reaction
A sedimentary ore of secondary accumulation and not unlike a natural cement, it is usually mined for heavy minerals, occurs as reddish-brown to beige or even white calcareous material.
A sudden and extensive geologic event
Sample material reflective of the deposit, obtained from a channel or trench
The mine building where workers change into uniforms and safety equipment
A brassy-yellow tetragonal mineral with a metallic blue tarnish or oxide, it is the common ore of copper. CuFeS2
A copper sulphide mineral of secondary enrichment