Category: Minerals

Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is an abundant natural resource that can be used as a source of energy, as a chemical source from which numerous synthetic compound (e.g., dyes, oils, waxes, pharmaceuticals, and pesticides) can be derived. peat, lignite, bituminous, and anthracite are the types of coal

Is a Sulfate category mineral are found in bedded sedimentary rocks.

Is a sulfide category mineral is the main ore of lead, is found in igneous and metamorphic rocks galena is used in a green glaze applied to pottery.

Is a Oxide category mineral Is the chief ore of the metal tungsten. used for electric filaments and armor-piercing ammunition

is a dull black glassy volcanic rock formed when felsic lava or magma is an extrusive rock that is very resistant to erosion.  

is a group name for hard black manganese oxides

group of orthorhombic pyroxenes. found in igneous and some metamorphic rocks

most commonly mined ore of iron. is found in igneous, metamorphic, and sedimentary rocks is widely used in compasses and other navigation devices

Graphite is a naturally-occurring form of crystalline carbon mineral found in metamorphic and igneous rocks. is used in pencils and lubricants

black mica minerals Occurrence –  igneous and metamorphic rocks