File:"Pink Westerly Granite" (granite, 279 Ma, Early Permian; near Westerly, Rhode Island, USA) (14805138152).jpg

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"Pink Westerly Granite" - granite from the Permian of Rhode Island, USA.

"Granite" in the decorative stone trade is any relatively hard rock that will take a fine polish, regardless of mineralogy or chemistry or geologic origin.

"Granites" turn out to be felsic to mafic intrusive igneous rocks (granite, granodiorite, porphyritic granite, rapakivi granite, orbicular granite, pegmatitic granite, graphic granite, anorthosite, monzonite, gabbro, norite, gabbronorite, dolerite, diabase, charnockite, etc.) and high-grade to very high-grade metamorphic rocks (metanorthosite, gneiss, metaconglomerate, amphibolite, quartzite, granulite, migmatite).

True granites (= monzogranites & syenogranites & porphyritic varieties) make up most of the commercial granite trade. Countless varieties are quarried around the world.

Pink Westerly Granite is a fairly typical granite with an even phaneritic texture. This rock comes from near Westerly in southwestern Rhode Island, USA. It is mid-Early Permian in age, dating to 279 million years (= Sakmarian Stage or Artinskian Stage, depending on what geologic time scale one uses).
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Source "Pink Westerly Granite" (granite, 279 Ma, Early Permian; near Westerly, Rhode Island, USA)
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/14805138152 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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current01:29, 6 December 2019Thumbnail for version as of 01:29, 6 December 2019821 × 741 (1.29 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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