Coal

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Coal
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Coal is the remains of prehistoric organic matter in what was once swamps and peat bogs. It consists mainly of carbon with varying quantities of hydrogen, sulphur, orxygen and nitrogen. Under favourable conditions, these organic matter was compressed under high pressure and temperature forming this hard black mass we know today. The energy released from burning coal comes from the stored solar energy, millions of years ago. The quality of coal is dependent on the type of vegetation it is made of, the depth, temperature & pressure and its 'age'. 

Sample ID: 871

Particularities

State
Solid
Compound
Selections
Categories
Mineral
Curiosities
Relationships
Hard | Brittle | Black | Rough | Carbon

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