Leucite trapezohedrons in Tephrite (Mt. Somma)3D ModelNoAI
See the whole collection of minerals and rocks from Somma-Vesuvius Volcanic Complex
Locality: Mt. Somma
No.: 8676
Size: 7 x 5 x 4.3 cm
Type: Igneous extrusive (volcanic) rock
Description: Tephrite is a volcanic rock resembling basalt, but it is rich in feldspathoid minerals. This makes it very similar to Bassanite, but Tephrite contains very little olivine (<10%). Leucite (K(AlSi2O6)) is a member of the feldspathoid group, forming directly from cooling lava in volcanic rock. It forms in low-silica environments where little Quartz is present.
Essential minerals: plagioclase, mafic minerals, feldspathoids (nepheline, leucite)
Non-essential minerals: hornblende, biotite and/or pyroxenes
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by Andrei Ionut APOPEI
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