Архив для рубрики April 5, 2012

Is Water a Mineral? — Is Ice a Mineral?

The best way to determine if a substance is a “mineral” is to compare its properties to the definition of the word “mineral”. 

What is a Mineral?

The word “mineral” is used by geologists for a group of naturally occurring crystalline substances. Gold, pyrite, quartz, calcite and fluorite are all examples of “minerals”.

To be a mineral a substance must meet five requirements:

  1. naturally occurring (not made by humans)
  2. inorganic (not produced by an organism)
  3. solid
  4. a limited range of chemical compositions
  5. ordered atomic structure  Далее