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Optical Calcite

3 Hits, Last modified: 9 years ago

:calcite2.jpg?direct&300|}} Calcite has two different indices of refractive depending on the polarization of the incident light. {{:calcite.pdf}} - Print to page for use in a demonst

Laser Pens

2 Hits, Last modified: 11 years ago

====== Laser Pens ====== ===== Red ===== ===== Green ===== ===== Violet ===== <del>Blue</del> Violet (405nmm) laser

Ulexite (Television Stone)

1 Hits, Last modified: 9 years ago

===== Ulexite (Television Stone) ====== [[https://en.wikipedia.org/wiki/Ulexite|Wikipedia Article on U