A Geoscience Digital Image Library

DescriptionKaolinite, Al2Si2O5(OH)4, is an earthy clay silicate. It is a secondary mineral resulting from weathering or hydrothermal alteration of alumino-silicates such as feldspars and feldspathoids. It has a hardness of about 1.5-2 and is named after its locality in Kao-Ling, China.
LocationUSA ▹ North Dakota ▹ Morton. Near Hebron.
PhotographerShannon Heinle. 2002-02-11.
CollectionUniversity of North Dakota Mineralogy Collection #1493.
Key wordskaolinite, silicate, clay
Tech details391 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number2356