Cavities in the Earths surface, resultant of collisions between an asteroid or meteorite
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Category: <span>I</span>
A common ore of titanium
The simplest of the 3 main rock types which includes sedimentary and metamorphic, igneous rocks are formed immediately upon the cooling of molten material
Minerals whose colour is influenced by their primary constituent
An elevated are between to moving water bodies, such as rivers or creeks, which run parallel to each other
A semitransparent variety of jadeite commonly used as a Gemstone. Usually found in China
To shield the passage of energy such as heat, sound and electricity
An machine which processes mineral ore by mechanically crushing it between steel plates
Being chemically resistant to dissolution in a particular substance
Referring to ore still in the ground