fluorite
Sulfur is the mineral commonly used to make fire because it catches fire easily and burns with a blue flame, producing heat and light.
Vermiculite is a naturally occurring mineral that is mined from deposits in the Earth's crust. The mining process involves extracting the mineral from underground or open-pit mines, then it goes through a process of heating and expanding to create the lightweight and absorbent material known as vermiculite. This expansion process is usually done using high heat to make the mineral expand rapidly, resulting in its characteristic accordion-like shape.
Feldspar
to extract zinc from its mineral you can heat it with carbon
Corundum
Galena is commonly mined from sulfide deposits containing more than one mineral, often in combination with for instance Sphalerite.The most common method of excavation is Cut-and-fill mining Underground.
The answer is: small amounts of different elements
After coal is mined, it is processed to remove impurities and transported to power plants or industrial facilities for use. At the plants, coal is burned to produce heat, which is used to generate electricity or heat buildings. The leftover ash is typically disposed of in landfills or reutilized in construction materials.
Besides air and water, there are several things that can change the color of a mineral. Impurities, age, the sun, heat, and pressure can change the color of a mineral.
Silicon is used for solar panels for strengthening purposes. Silicon is mined from sand which is virtually found everywhere. When sand is subjected to intense heat, one of the by products is usually silica.
Coal is a natural mineral. You might be confusing this with charcoal which is man-made.
Electricity