Presentation on theme: "A mineral is a naturally occurring, inorganic, solid, with a definite chemical composition, and an ordered atomic arrangement. Minerals are naturally."— Presentation transcript:
A mineral is a naturally occurring, inorganic, solid, with a definite chemical composition, and an ordered atomic arrangement. Minerals are naturally occurring They are not made by humans Minerals are inorganic They have never been alive and are not made up from plants or animals Minerals are solids They are not liquids (like water), or gases (like the air around you)
A mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement. Minerals have a definite chemical composition Each one is made of a particular mix of chemical elements Minerals have an ordered atomic arrangement The chemical elements that make up each mineral are arranged in a particular way - this is why minerals 'grow' as crystals
The major mineral groups: Silicates and Non-Silicates Silicates = minerals that contain Silicon (Si) and Oxygen (O) An example Quartz
Non-Silicate groups: Carbonates, Oxides, Sulfates, Sulfides, Halides, and Native Elements
Mineral Formation – 3 ways Cooling of hot melting material (magma) Evaporation – from minerals dissolved in solution (Halite) Precipitation – from minerals dissolved in solution
Carbonates = Minerals that contain the elements carbon (C), Oxygen (O), and one or more other metallic elements. An example Calcite Chemistry: CaCO 3, Calcium Carbonate Class: CarbonatesCarbonates Group: CalciteCalcite Uses: In cements and mortars, production of lime, limestone is used in the steel industry; glass industry, ornamental stone, chemical and optical uses and as mineral specimens.
Oxides = Minerals that contain Oxygen (O) and one or more elements, which are usually metals. An example Rutile Chemistry: TiO 2, Titanium Oxide Class: Oxides and HydroxidesOxides and Hydroxides Group: RutileRutile Uses: Ore of titanium, pigment and as an ornamental stone when in clear quartz
Sulfates = Minerals that contain the elements, Sulfur (S), and Oxygen (O); SO 4. An example Barite Chemistry: BaSO 4, Barium Sulfate Class: SulfatesSulfates Group: BariteBarite Uses: ore of barium
Sulfides = Minerals that contain the elements Sulfur (S), some other elements. An example Pyrite Chemistry: FeS 2, Iron Sulfide Class: SulfidesSulfides Group: PyritePyrite Uses: A very minor ore of sulfur for sulfuric acid, used in jewelry under the trade
Halides = Minerals that contain a halogen ion plus one or more other elements. An example Halite Chemistry: NaCl, Sodium Chloride Class: HalidesHalides Uses: Major source of salt and as mineral specimens.
Native Elements = Minerals that are uncombined with other elements. An example Silver Chemistry: Ag, Elemental silver Class: ElementsElements Group: GoldGold Uses: Minor ore of silver for use in jewelry, coins and photographic films and other industrial uses.jewelry
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