NM3899 : Spherulites

near to Kinloch, Highland, Great Britain

Spherulites
Spherulites
Geologically speaking, spherulites are small round bodies that occur when vitreous lava or obsidian devitrifies and forms crystals. On close examination under a microscope, they are seen to be made up of radiating fibres. These ones are quite large - note the pencil tip for scale - normally they are about the size of a grain of rice. The geological excursion guide draws attention to an outcrop of spherulitic rock right at the base of the waterfall on Allt Bealach Mhic Néill, but ironically the road from Kinloch to Harris is full of crushed spherulitic material, some of it containing quite spectacular specimens. We failed, unfortunately, to find the quarry from which the stone was taken.
Creative Commons Licence [Some Rights Reserved]   © Copyright Anne Burgess and licensed for reuse under this Creative Commons Licence.
year taken
2012
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NM3899, 14 images   (more nearby)
Photographer
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Image classification?
Supplemental image
Date Taken
Sunday, 22 April, 2012   (more nearby)
Submitted
Wednesday, 25 April, 2012
Geographical Context
Geological interest 
Subject Location
OSGB36: geotagged! NM 3801 9966 [10m precision]
WGS84: 57:0.8080N 6:19.0480W
Photographer Location
OSGB36: geotagged! NM 3801 9966
View Direction
WEST (about 270 degrees)
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Other Tags
Spherulite  Obsidian  Devitrification  Lava  Magma 

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