Mineral Mania

A mineral is a naturally occurring chemical mixture.

Minerals always have the same crystalline structure. A mineral consists of only itself whereas rocks can contain a variety of pebbles and minerals. There are over 5,300 known minerals in the world and possibly some unknown ones.

101_0652Creative Commons License Alisha Vargas via Compfight

All minerals have to fit into the five criteria. This is the five criteria.

  1. It is a solid
  2. It is naturally occurring
  3. It is inorganic
  4. It has a specific chemical composition
  5. It has an ordered and patterned atomic structure

Ice is a debatable mineral. It follows the five criteria frozen; but not as a liquid.

Rock salt is a mineral, even though its edible. Rock salt also has another name which is halite. In fact, you may find that there can be minerals in toothpaste! Fluorite is sometimes in toothpaste. Can you imagine this in something you’re about to put all around your mouth!

Fluorite Tjflex2 via Compfight

Friedrich Mohs was famous for his mineral hardness scale. It was used to measure the hardness of other minerals based off the written ones. This is his scale, 1 being weakest.

  1. Talc
  2. Gypsum
  3. Calcite
  4. Fluorite
  5. Apatite
  6. Orthoclase
  7. Quartz
  8. Topaz
  9. Corundum
  10. Diamond

Thank you for reading!

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