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Galena |
  
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Galena |
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Galena is a common mineral. Its characteristic cubes, distinctive cleavage and high density make it easy to identify and. The structure of Galena is identical to that of halite, NaCl. The two minerals have the same crystal shapes, symmetry and cleavage. Some Galena may contain up to 1% silver in place of lead. The large volume of Galena that is processed for lead produces enough Silver as a by product to make Galena the leading ore of Silver.
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