oligoclase

• Mineral aus der Gruppe der Plagioklase, ein trikliner Feldspat, der gesteinsbildend vorkommt.

A noun referring to any of a series of triclinic feldspar minerals that form rocks.

1. C2formalscientific

   A type of triclinic feldspar mineral that is part of the plagioclase series, commonly found in igneous rocks.

   Oligoklas

   • Oligoclase is often found in granite and syenite formations.
   • The sample contained a high proportion of oligoclase crystals.
   • Geologists identified oligoclase in the rock using a microscope.