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22 True/False questions

  1. polymorphThe way a mineral surface scatters light.

          

  2. silicon-oxygen tetrahedronThe basic building block of silicate minerals; it consists of one silicon atom surrounded by four oxygen atoms.

          

  3. streakThe color of the powder produced by pulverizing a mineral on an unglazed ceramic plate.

          

  4. conchoidal fractureThe internal arrangement of atoms or ions within a crystal.

          

  5. LusterThe color of the powder produced by pulverizing a mineral on an unglazed ceramic plate.

          

  6. symmetryThe color of the powder produced by pulverizing a mineral on an unglazed ceramic plate.

          

  7. Silicate mineralsA homogenous, naturally occurring, solid inorganic substance with a definable chemical composition and an internal structure characterized by an orderly arrangement of atoms, ions, or molecules in a lattice. Most minerals are inorganic.

          

  8. mineralogyA homogenous, naturally occurring, solid inorganic substance with a definable chemical composition and an internal structure characterized by an orderly arrangement of atoms, ions, or molecules in a lattice. Most minerals are inorganic.

          

  9. Mohs hardness scaleA list of ten minerals in a sequence of relative hardness, with which other minerals can be compared.

          

  10. crystal habitThe general shape of a crystal or cluster of crystals that grew unimpeded.

          

  11. specific gravityThe study of minerals.

          

  12. crystal latticeThe flat surface of an euhedral mineral grain.

          

  13. CrystalThe flat surface of an euhedral mineral grain.

          

  14. gemA mineral or form of a mineral that is particularly beautiful and/or rare, and thus has value.

          

  15. hardnessIn mineralogy, hardness refers to the resistance of a mineral to scratching; a harder mineral can scratch a softer mineral.

          

  16. carbonate rocksIn mineralogy, hardness refers to the resistance of a mineral to scratching; a harder mineral can scratch a softer mineral.

          

  17. cleavageA single, continuous piece of a mineral bounded by flat surfaces that formed naturally as the mineral grew.

          

  18. mineralThe study of minerals.

          

  19. crystal structureThe internal arrangement of atoms or ions within a crystal.

          

  20. geodeA cavity in which euhedral crystals precipitate out of water solutions passing through a rock.

          

  21. crystal faceThe orderly framework within which the atoms or ions of a mineral are fixed.

          

  22. facetThe flat surface of a cut gemstone; facets are produced by grinding.