A crystal structure having 8 triangular sides
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Category: <span>O</span>
The compound of an element with oxygen produces an oxide of that element
A dark to black coloured highly siliceous volcanic glass
A chemical change caused by the introduction of oxygen
Where older rock beds have been moved over younger rock beds
Exposed rock or mineralization at surface
The period of geological time where the Earths crust folded sufficiently to create mountains
A continuous structure of rock having similar metamorphosis or deformation
A length of mineralization in an orebody