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Matter and Minerals Chapter 2 What is a mineral? What are Native Elements? How are atoms are arranged in a mineral? How is the external shape of the crystal related to atomic arrangement? What are the common crystal shapes? What is the law of CONSTANCY of interfacial angles? Does the size of a mineral matter? What is a Simple Compound? What are some examples? What is elemental substitution? Why Should You Study Minerals? Matter - What Is It & What Is It Composed of? Where is an atom’s Nucleus located? What does a nucleus consist of? Where are electrons located & why are they important? What is an Atomic number? What is Atomic mass? What are Isotopes ? How does Chemical Bonding occur? What are the 4 types of chemical bonds that hold molecules together? What are Ionic bonds & where do they form? Why can’t atoms of the same element bond ionically? What are Covalent bonds & how do they form? What are Metallic bonds & how do they form? How are DIAMONDS bonded? What are van der Waals bonds & how do they form? GRAPHITE How Many Minerals Are Known? What are Silicates composed of? How common are silicates? What Complex ion constitutes a silicate & how is it arranged? What are the 7 (main) Physical Properties of Minerals? What is the difference between cleavage & fracture? Moh’s Hardness Scale HARDNESS 10 9 8 7 MINERAL Diamond Corundum Topaz Quartz COMMON OBJECT Steel file (6.5) 6 Orthoclase Glass (5.5-6) 5 4 3 Apatite Fluorite Calcite 2 1 Gypsum Talc Copper penny (3) Fingernail (2.5) What are other physical properties a mineral can have? What are the 4 processes that form minerals?