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www.reference.com/science/coal-mineral-8004ca4ed94e551b

Coal is not a mineral because it is organic, and minerals are inorganic. Minerals have a repeating crystalline structure and a homogeneous chemical profile.

en.wikipedia.org/wiki/Coal

Coal is the official state mineral of Kentucky and the official state rock of Utah; both U.S. states have a historic link to coal mining. Some cultures hold that children who misbehave will receive only a lump of coal from Santa Claus for Christmas in their christmas stockings instead of presents.

www.quora.com/Why-is-coal-not-considered-a-mineral

Why are minerals limited to inorganic solids? The C in coal is from the same stellar source (fusion) as that in diamond and is also crystalline. Both are C solid compounds, differently packed, so coal is fine as a mineral to me (and i write the exam :-)

www.answers.com/Q/Is_a_coal_a_mineral_and_explain

Well coal is a rock and rocks are made up of one or more minerals. So technically coal is a mineral because it is a rock and rocks are made of minerals.

www.thoughtco.com/all-about-coal-1440944

If coal is subjected to still more heat and pressure, it becomes a metamorphic rock as the macerals finally crystallize into a true mineral, graphite. This slippery mineral still burns, but it is much more useful as a lubricant, an ingredient in pencils and other roles.

answers.yahoo.com/question/index?qid=20081007201619AAqpVua

Best Answer: Legally it is considered a Mineral, in regards to taxing and mining. However technically it is more of a rock. The origins of the material making up coal are primarily organic. Coal is now the official State Mineral of Kentucky.

www.knowswhy.com/why-is-coal-not-classified-as-a-mineral

Coal is only a mineraloid which look like a mineral but actually it does not meet the criteria of a true mineral. Mineral is organic which is made up of hydrogen and carbon. Coal, as explained earlier came from plant remains which has a hydrocarbon structure that’s why it is always mistaken as a mineral.

quizlet.com/102312685/science-chapter-3-minerals-flash-cards

Explain why coal and a glass marble are not minerals. A mineral has to be naturally occurring, inorganic, solid, have a crystal structure, and have a definite chemical composition. Coal is not a mineral because it is carbon-based and came from fossilized plants.

mineralseducationcoalition.org/minerals-database/coal

Coal is one of the world’s major sources of energy. Coal is used to produce nearly one third of all the electrical energy that is generated and used in the United States. Coal is a very complex and diverse energy resource that can vary greatly, even within the same deposit.

geology.com/rocks/coal.shtml

Coal is also used as a power source for factories. There it is used to heat steam, and the steam is used to drive mechanical devices. A few decades ago most coal was used for space heating. Some coal is still used that way, but other fuels and coal-produced electricity are now used instead. Coke production remains an important use of coal.