Crystal Shapes

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Across
  1. 2. I have 6 sides. All of them are parallelograms or squashed rectangle. I have 12 edges and 8 corners.
  2. 4. I have 6 rectangular sides. I have 12 edges and 8 corners.
  3. 5. I have 8 sides, 18 edges, and 12 corners
Down
  1. 1. I have 6 sides. Four of my sides are rectangles. Two of my sides are parallelograms or squashed rectangles. I have 12 edges and 8 corners.
  2. 2. I have 6 sides, only two of my sides are squares. I have 12 edges and 8 corners.
  3. 3. I have 6 square sides, 12 edges, and 8 corners