This book contains classic material dating back to the 1900s and before.
The content has been carefully selected for its interest and relevance
to a modern audience. Carefully selecting the best articles from our
collection we have compiled a series of historical and informative
publications on the subjects of gemology and crystallography. The titles
in this range include "Gemstone Manufacturing" "Geometrical Characters
of Crystals" "The Morphology of Crystals" and many more. Each
publication has been professionally curated and includes all details on
the original source material. This particular instalment, "Optically
Uniaxial Crystals" contains information on the optical properties of
crystals. Intended to illustrate the main types of uniaxial crystal it
is a guide for anyone wishing to obtain a general knowledge of the
subject and to understand the field in its historical context. We are
republishing these classic works in affordable, high quality, modern
editions, using the original text and artwork.