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Eisco Labs Glass Semicircular Block, 3 1/2"x11/16" (90x18mm)

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  • All faces fully polished
  • clear glass
  • Works well in ray box experiments (Eisco Labs part number PH0602A)
  • works well with low power monochromatic light source
90x18mm glass semicircular block for light refraction and geometrical optics experiments