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2. List of minerals recognized by the International ...

   en.wikipedia.org/wiki/List_of_minerals...

   This list includes those recognised minerals beginning with the letter B.The International Mineralogical Association is the international group that recognises new minerals and new mineral names; however, minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date.

3. List of minerals recognized by the International ...

   en.wikipedia.org/wiki/List_of_minerals...

   Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species. Within a mineral species there may be variation in physical properties or minor amounts of impurities that are recognized by mineralogists or wider society as a mineral variety.

4. Soil color - Wikipedia

   en.wikipedia.org/wiki/Soil_color

   The reduced iron compounds cause poorly drained soil to appear gray or blue, and because reduced iron is soluble in water, it may be removed from the soil during prolonged saturation. This often exposes the light gray colors of bare silicate minerals, and soils with a low chroma from iron reduction or depletion are said to be gleyed. [1]

5. List of minerals - Wikipedia

   en.wikipedia.org/wiki/List_of_minerals

   This is a list of minerals which have Wikipedia articles. Minerals are distinguished by various chemical and physical properties.

6. Rare-earth mineral - Wikipedia

   en.wikipedia.org/wiki/Rare-earth_mineral

   Thus an indication of these minerals being short in supply and allocated their title as 'rare' earth minerals. [4] Many rare-earth minerals include rare-earth elements which thus hold the same significant purpose of rare-earth minerals. [5] Earth's rare minerals have a wide range of purposes, including defense technologies and day-to-day uses. [6]

7. List of mineral tests - Wikipedia

   en.wikipedia.org/wiki/List_of_mineral_tests

   Mineral tests are simple physical and chemical methods of testing samples, which can help to identify the mineral type. [1] This approach is used widely in mineralogy , ore geology and general geological mapping.