Triangles: 866.8k
Vertices: 433.4k
More model informationSource: Chile, Quebrada de Pinte, Jurassic.
Description: Porphyritic andesite showing trachytic and amygdaloidal textures. Preferred orientation of large tabular plagioclase phenocrysts is due to lava flowage. Most vesicles were filled with secondary minerals (zeolites, calcite, silice, etc.) during low-temperature fluid alteration events.
Size: 8 x 6 x 5 cm
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