Plagioclase with a characteristic striated crystal surface

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Plagioclase with a composition of oligoclase (Ab20). Polysynthetic twinning (albite law) is well displayed on the crystal face (parallel grooves). Width of sample 12 cm.

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Size: 2600px × 3900px
Location: Evje, Norway
Photo credit: © Siim Sepp / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: albite, andesine, anorthite, bytownite, cleavage, crystal, face, feldspar, framework, groove, labradorite, law, mineral, mineralogy, oligoclase, petrology, plagioclase, polysynthetic, series, silicate, solid, solution, striated, tectosilicate, twin, twinning