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22 Matching questions

  1. facet
  2. mineralogy
  3. crystal face
  4. cleavage
  5. crystal habit
  6. crystal structure
  7. conchoidal fracture
  8. crystal lattice
  9. silicon-oxygen tetrahedron
  10. Silicate minerals
  11. hardness
  12. geode
  13. Luster
  14. Mohs hardness scale
  15. symmetry
  16. specific gravity
  17. polymorph
  18. carbonate rocks
  19. gem
  20. Crystal
  21. mineral
  22. streak
  1. a The internal arrangement of atoms or ions within a crystal.
  2. b The color of the powder produced by pulverizing a mineral on an unglazed ceramic plate.
  3. c A list of ten minerals in a sequence of relative hardness, with which other minerals can be compared.
  4. d The condition in which the shape of one part of an object is a mirror image of the other part.
  5. e In mineralogy, hardness refers to the resistance of a mineral to scratching; a harder mineral can scratch a softer mineral.
  6. f The basic building block of silicate minerals; it consists of one silicon atom surrounded by four oxygen atoms.
  7. g Minerals composed of silicon-oxygen tetrahedra linked in various arrangements; most contain other elements as well.
  8. h (1) The tendency of a mineral to break along preferred planes; (2) a type of foliation in low-grade metamorphic rock.
  9. i Smoothly curving, clamshell-shaped surfaces along which materials with no cleavage planes tend to break.
  10. j The general shape of a crystal or cluster of crystals that grew unimpeded.
  11. k Two minerals that have the same chemical composition but a different crystal lattice structure.
  12. l A cavity in which euhedral crystals precipitate out of water solutions passing through a rock.
  13. m A mineral or form of a mineral that is particularly beautiful and/or rare, and thus has value.
  14. n The way a mineral surface scatters light.
  15. o A number representing the density of a mineral, as specified by the ratio between the weight of a volume of the mineral and the weight of an equal volume of water.
  16. p The orderly framework within which the atoms or ions of a mineral are fixed.
  17. q A single, continuous piece of a mineral bounded by flat surfaces that formed naturally as the mineral grew.
  18. r Rocks containing calcite and/or dolomite.
  19. s A 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.
  20. t The flat surface of a cut gemstone; facets are produced by grinding.
  21. u The flat surface of an euhedral mineral grain.
  22. v The study of minerals.