#transparent_substance__transparentsubstance__translucent_substance__translucentsubstance  a material having the property of admitting light diffusely; a partly transparent material
  supertype:  material.substance__stuff  the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread"
  subtype:  mica__isinglass__isinglas  any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity
     subtype:  biotite  dark brown to black mica found in igneous and metamorphic rock
        subtype:  lepidomelane  a mica that is a biotite containing iron
     subtype:  lepidolite  a mineral of the mica group; an important source of lithium
     subtype:  muscovite  a colorless or pale brown mica with potassium
        subtype:  damourite  a variety of muscovite
     subtype:  paragonite  a colorless or pale brown mica with sodium
     subtype:  phlogopite  a brown form of mica consisting of hydrous silicate of potassium and magnesium and aluminum
     subtype:  zinnwaldite  a mica containing iron and lithium
  subtype:  hyaline__hyalin  a glassy translucent material that occurs in hyaline cartilage or in certain skin conditions

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