Simetry of stereograms used in the determination of the optical indicatrix of minerals

Authors

  • Arary Marconi USP; ESALQ; Departamento de Solos e Geologia
  • Ibrahim Octavio Abrahão USP; ESALQ; Departamento de Solos e Geologia

DOI:

https://doi.org/10.1590/S0071-12761976000100037

Abstract

There is a simetry relation between stereograms constructed with the aid of the analytical method of determining the optical indicatrix of minerals in thin section, in the universal stage. This simetry is discussed in this paper. It is a plane-simetry which always occurs both in the ψ 1 and ψ2 graphics and curves when ψ1 + ψ2 = 90°.

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Published

1976-01-01

Issue

Vol. 33 (1976)

Section

naodefinida

How to Cite

Marconi, A., & Abrahão, I. O. (1976). Simetry of stereograms used in the determination of the optical indicatrix of minerals . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 33, 407-413. https://doi.org/10.1590/S0071-12761976000100037