Geologically Speaking

Delicate orbicules within this orbicular gabbro showcase the stunning intricacy of mineral growth.

Formed by semi-concentric layers of plagioclase and pyroxene, these orb-like structures are the result of a unique cooling process that requires precise conditions within the magma chamber.

The fine, rounded shapes highlight the rock’s complex crystallization and add an unexpected touch of elegance to an otherwise rather boring texture of gabbro.
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#геология ́a #جيولوجيا ́ologie

Beautifully reflective sheets of biotite within an amalgam of quartz and perthite (intergrowth of sodic and potassic feldspar).
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#геология ́a #جيولوجيا ́ologie