

Iceland spar, cut in three directions - perpendicular, parallel, and oblique to the axis, by L. Laurent, Paris, France, 1876. Greatest measurement 2 1/2-inches. Inside glass dome fixed to wooden base. (Displayed with original label.)
Details
- Category:
- Optics
- Object Number:
- 1876-341
- Materials:
- Iceland spar, brass (copper, zinc alloy), copper (alloy), cotton (textile), cotton tape, glass, metal (unknown), velvet, wood (paint), wood (unidentified) and wood (varnish)
- Measurements:
-
prism: 65 mm x 70 mm x 75 mm, ,
- type:
- polarizer
- credit:
- Laurent, L�on