Alkali feldspar Rhyolite (igneous rock), Romania3D ModelNoAI
Alkali feldspar Rhyolite (igneous rock), Romania
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More model informationLocality: Romania
Size: 11 cm x 5 cm x 4 cm
Type: Igneous extrusive (volcanic) rock
Description: Rhyolites are aphanitic rocks, commonly porphyritic, consisting of quartz, Alkali-feldspar, ± plagioclase, and/or volcanic glass of appropriate chemistry. The groundmass or fundamental mass is hyaline or hypocrystalline (as is in this case). Phenocrystals are represented by quartz, alkali feldspars (mainly orthoclase), and rarely plagioclase, mafic minerals.
Essential minerals: quartz, potassic feldspar (orthoclase, microcline), ± plagioclase, biotite.
Accessory minerals: volcanic glass, amphiboles.
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by dr. Andrei Ionut APOPEI
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