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Remarks on “biaxial” calcite |
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| Authors: | Essam E El-Hinnawi |
| Institution: | (1) Institut für Petrologie und Geochemie, Frankfurt a. M. |
| Abstract: | Biaxial calcite grains occur in several Egyptian carbonate rocks. The degree of biaxiality is nearly consistent; the optic axial angle being in the range of 8–10°. The reasons of this “biaxiality” are discussed and it is urged that this phenomenon should be considered both in research and teaching. |
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