Industrial mineral deposits formed during each of the tectonic phases, and several volcanoes were occurred during this process which increased the potential of mining deposits, and this area has been considered as wealthy land in the economic geology. Some Specific gem minerals which are found around Vancouver Island are presented here.
Fig 1: Rock_Class
Fig 2 : Rock_Type
Fig 3 :
Sedimentary rocks are the product of the Settlement
and consolidation of loose sediment that has accumulated in beds.
Fig 4 :
Igneous rocks are formed from magmatic phenomena that accure in the depths of the Earth. There are two categories of igneous rocks: intrusive (or plutonic) rocks like granite and volcanic rocks like Basalt.
Fig 5 :
A metamorphic rock is a product from a reclassification of igneous or sedimentary rock that is transformed, to a greater or lesser degree, by the action of physical factors such as temperature and pressure during time, or chemical factors that include the addition or defraction of new minerals.
Figs 6-23 :
Diamond is one the valuable gem which can find in volcano necks or volcano dikes in different areas of Canada.