On a New Method of Detecting Pyro-Electricity

A. J. P. Martin
Exhibitioner of Peterhouse, Cambridge

Summary: 1. A new experimental method of detecting pyro-electricity is given, which depends on the attraction between a charged crystal and a metallic conductor, the charge being developed by cooling the crystal in liquid air.

2. Results for a number of crystals are given, attention being drawn to dioptase, which although placed in a centro-symmetrical class, yet shows definite pyro-electricity.

3. A comparison is made between this and other methods.

Mineralogical Magazine; June 1931 v. 22; no. 133; p. 519-523; DOI: 10.1180/minmag.1931.022.133.04
© 1931, The Mineralogical Society
Mineralogical Society (www.minersoc.org)