Underground Items

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Across
  1. 2. A brightly colored, usually fragile mineral
  2. 3. An earthen solid, usually tan or grey in color
  3. 4. Pointed rock formations on cave floors
  4. 7. A small, uniquely colored stone used in jewelry
Down
  1. 1. Pointed rock formations on cave ceilings
  2. 5. Winged mammals that hang from cave ceilings
  3. 6. Leafy, strand-like plants