Earth Science Topic 11 (Rocks and Minerals)

Cards (9)

  • Mineral: Naturally occurring inorganic substance
  • Properties of a mineral: Color, streak, luster, cleavage, fracture, hardness
  • Color: least important property
  • Streak: True color of a mineral in its powdered form
  • Luster: Metallic or Non-Metallic
  • Cleavage: When minerals break in a pattern
  • Moh's Hardness Scale: Talc = 1, Gypsum = 2, Calcite = 3, Fluorite = 4, Apatite = 5, Feldspar = 6, Quartz = 7, Topaz = 8, Corundum = 9, Diamond = 10
  • Fracture: When a mineral does not break in a pattern
  • Hardness: Resistance to scratching