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On the photogoniometric method of examining crystals with complex surfaces (I) A photogoniometric attachment to a two-circle reflecting goniometer

✍ Scribed by Mr. I. Vesselinov

Publisher: John Wiley and Sons
Year: 1976
Tongue: English
Weight: 493 KB
Volume: 11
Category: Article
ISSN: 0232-1300
DOI: 10.1002/crat.19760110105

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✦ Synopsis

Abstract

The construction of a photographic unit adjustable to a twocircle reflecting goniometer is described. It is designed for taking photographs of portions of the reflection pattern obtained from the object mounted on the goniometer head so that the whole pattern subject to visual examination can be recorded. The attachment is simple to make and easy to operate. The combination of a two‐circle reflecting goniometer with the photogoniometric unit has the advantages both of visual goniometry and of photogoniometry, eliminating their shortcomings.

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On the photogoniometric method of examining crystals with complex surfaces (II). Determining the spherical coordinates of poles of points on the photographs

✍ Mr. I. Vesselinov 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 614 KB

## Abstract The paper discusses methods of determining the spherical coordinates of the poles of reflections recorded on photographs obtained with the photogoniometric attachment, which is described in the first part of this paper, and examines the accuracy of the determined values as compared with