Igneous Rocks
Igneous rock is shaped via the cooling and solidification of magma or lava. The magma may be derived from partial melts of existing rocks in both a planet’s mantle or crust.
Monzonite
Monzonite is a type of igneous rock that falls within the category of intrusive or plutonic rocks. It is primarily composed of minerals such...
Basalt
Basalt is the most common rock on Earth’s surface. Specimens are black in color and weather to dark green or brown. Basalt is rich in iron and magnesium and is mainly composed of olivine, pyroxene, and plagioclase. Most specimens are compact, fine-grained, and glassy. They can also be porphyritic, with phenocrysts of olivine, augite, or plagioclase. Holes left by gas bubbles can give basalt a coarsely porous texture.
Scoria
Scoria is a type of volcanic rock that forms from the solidification of molten lava. It is commonly found around and on the surface...
Granite
The most common intrusive rock in Earth’s continental crust, granite is familiar as a mottled pink, white, gray, and black ornamental stone. It is coarse- to medium-grained. Its three main minerals are feldspar, quartz, and mica, which occur as silvery muscovite or dark biotite or both. Of these minerals
Volcanic Bomb
Volcanic bomb is pyroclastic rock that is a cooling of a mass of lava it flies thorough the air after eruption. If it is...
