Thinsection

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bewholefedecum-u-likeMarketa Gubalovafieldcapcolorado girl

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Just a snowman that found gold (top left) .

Ooid Wednesday But what is an ooid? Ooids are spheroidal sedimentary grains composed of calcium carb

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

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

luna-and-mars:Guess what I’m up to? :DTaking petrology this semester, which means lots of thin

gloomywormwood:My petrography course is over.

mossy-rox:Pyroxene with high iron content in Yellowstone Lava Creek Tuff. In hand sample, the rock a

optical-mineralogy:AnorthositePlagioclase Feldspar (polysynthetic twinning)Clinopyroxene

mineralsandsomerocks:Olivine in Plane Polarized (left) and Cross Polarized (right) LightThe amount o

mossy-rox: “The Comet” Oxidized euhedral pyroxene crystals in ashy groundmass of volcani

lisboalife: Comment: carolinanselmo said “Party minerals #geology #colors #minerals #class #bl

dream-small-do-big: You can never go wrong with thin sections

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