- andesite
- basalt
- bedrock
- chert
Eroded rocks near Tongue Point- extrusive rock
- Flag Rock
- geode
- glacial erratic
Green stone at Racehorse Creek- greenschist
- igneous rock
- intrusive rock
- jasper
- Jasper is an opaque rock of virtually any colour stemming from the mineral content of the original sediments or ash.
- Polygons appear in rock formations, most commonly as the flat facets of crystals, where the angles between the sides depend on the type of mineral from which the crystal is made.
- Rock (geology) (Wikipedia)
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth’s outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects.
- Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks.
- sandstone
- Seal Rocks
- sedimentary rock
- shale
- St. Peter Sandstone
- The concept of mineral is distinct from rock, which is any bulk solid geologic material that is relatively homogeneous at a large enough scale.
- The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith.