Examlex
Originally, the Virginia Company intended to
Quartz
A hard, crystalline mineral composed of silicon and oxygen atoms, used in making jewelry, electronics, and optical devices.
Potassium Feldspar
A group of aluminum silicate minerals that contain potassium, commonly found in igneous and metamorphic rocks.
Intrusive Area
An intrusive area is a region where igneous rocks have crystallized from magma intruding into the Earth's crust but have not erupted onto the surface.
Source Area
The geographic location where the materials of a sedimentary rock were derived from.
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