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A Geoscience Digital Image Library

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TitleCalcite rhomb showing double refraction
DescriptionCalcite is one of the few common minerals that exhibits double refraction that can be seen without the naked eye. Double refraction produces two images when light is split into two rays that follow slightly different paths through a crystal.
PhotographerTwyla Baker. 2001-06-11.
CollectionUniversity of North Dakota Mineralogy Collection.
Key wordsCalcite
Tech details390 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number670