Plagioclase

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The Plagioclase Feldspars areimportant rock-forming minerals and occur in numerous mineral environme

clawmarks:The isomorphism and thermal properties of the feldspars - Optical study - Carnegie Institu

gloomywormwood:Petrography day. Basalt in thin section. 

veggeologist:Myrmekitic textureAn intergrowth texture created when plagioclase feldspar and quartz g

optical-mineralogy: The plagioclase in this thin section has polysynthetic twinning. The orthopyroxe

optical-mineralogy:AnorthositePlagioclase Feldspar (polysynthetic twinning)Clinopyroxene

impulsiveinsomniac:More labradorite

roosaurusrin:Labradorite flash.A flashy piece of labradorite I picked up from a recent rock and gem

monstervsme:Labradorite

Orbicular graniteWe recently shared a photo of a Rapakivi granite, which contains grains of pinkish

This rock is predominantly composed of quartz, alkali feldspar, and plagioclase. The alkali feldspar

The plagioclase in this thin section has polysynthetic twinning. The orthopyroxene also has twinning

This rock is composed predominantly of plagioclase feldspar that are large euhedral crystals suggest

Alkali Feldspar crystals are large in this thin section. The alkali feldspar have subhedral crystals

Websterite in thin section Clinopyroxene and orthopyroxene with few anhedral plagioclase crystals in

privategemstonecollection:Labradorite

trying-geology:live, love, geology memes. This was also air dropped to me but in Kentucky… ge

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