On the optical study of minerals in convergent polarized light
Abstract
This article offers an attempt to derive the main principles underlying the application of convergent light, proceeding from the foundations of the theodolite method. This particular approach is the most appropriate if one follows the requirement to proceed from the simpler to the more complex. As will be seen from what follows, the logical development in this direction of the basic provisions of the theodolite method leads to almost the same concepts from which Becke proceeded when explaining the phenomena exhibited by a crystal in convergent light. Apart from some theoretical interest that an exposition of these techniques may have, proceeding from the concepts underlying the theodolite method, it seemed to me useful for the purpose of a comparative assessment of the limits of application of each of these two different methods of research (see the article).
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References
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