A Geoscience Digital Image Library

DescriptionNepheline is a major rock forming mineral and is a major component of several igneous rocks. Nepheline is a feldspathoid. There are very few natural nephelines that have the pure chemical formula of NaAlSiO4. Many times the sodium is variable with potassium. Nepheline comes from the Greek nephele meaning cloud, because it becomes clouded when put in strong acid.
LocationCanada ▹ Manitoba. The southeast part of the province.
PhotographerShannon Heinle. 2002-02-21.
CollectionUniversity of North Dakota Mineralogy Collection #4803.
Key wordsnepheline, feldspathoid
Tech details623 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number2443