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Renard (1888, fig. 07)
Description Trachyte of Red Hill. Small twinned crystals of sanidine, two tabular individuals superimposed on the face M, the traces of P y, and in the internal zones, the trace of x can be seen; the angle P P’ is about 127°. 1/60 crossed nicols.
Plaats: Ascension Island
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added on 2012-07-16520 viewsFrom reference Renard, A. (1888). Report on the rock specimens collected... (page 52)
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