1. Mineral Groups Common Categories

2. Two Basic Divisions Silicates Contain Si and O Sialic or Simatic Non Silicates Does not contain Si

3. Silicates Sialic Light colored Non- ferromagnesium Feldspar KAlSi 3 O Quartz SiO 2 Simatic Dark colored Ferromagnesium Olivine MgSiO 4 Mica KMgFe 3 AlSi 3 O 10 http://images.google.com/imgres?imgurl=http://www.mii.org/Minerals/Minpics1/Potash%2520feldspar.jpg&imgrefurl=http://www.mii.org/Minerals/photofeldspar.html&h=322 &w=360&sz=29&tbnid=hIrGkAbLv3X6pM:&tbnh=108&tbnw=121&prev=/images%3Fq%3Dfeldspar%2Bimage%26um%3D1&start=3&sa=X&oi=images&ct=image&cd=3 http://un2sg4.unige.ch/athena/mineral/images/quartz2_orpierre.html http://webmineral.com/data/Olivine.shtml http://www.soes.soton.ac.uk/resources/collection/minerals/minerals/pages/M31-Muscovite.htm

4. Non-Silicates Carbonates Always end with C and O Calcite CaCO 3 http://www.minerals.net/mineral/carbonat/calcite/images/12cleave.htm

5. Non-Silicates Oxides Metal with O Hematite Fe 2 O 3 www.cst.cmich.edu/users/dietr1rv/hematite-a.jpg Magnetite Fe 3 O 4 http://webmineral.com/specimens/Magnetite.jpg

6. Non-Silicates Halides Halogens (Cl & F) plus alkali or alkaline earth metal NaCl KCl NaF

7. Non-Silicates Sulfates Ends in SO 4 Gypsum CaSO 4 *2H 2 O http://webmineral.com/specimens/picshow.php?id=480

8. Non-Silicates Sulfides Metals plus sulfur (no O after S) Pyrite - FeS 2 Galena - PbS Sphalarite ZnS http://webmineral.com/data/Pyrite.shtml http://webmineral.com/specimens/Galena.jpg http://webmineral.com/data/Sphalerite.shtml

9. Non-Silicates Native Single element Copper - Cu http://www.minerals.net/mineral/elements/copper/copper2. htm Sulfur - S Shttp://webmineral.com/data/Sulfur.shtml Graphite - C http://webmineral.com/data/Graphite.shtml Gold - Au http://webmineral.com/specimens/picshow.php?id=461