A Geoscience Digital Image Library

DescriptionBytownite is a rare member plagioclase series of the feldspar group. Its chemical formula is (Ca,Na)(Si,Al)4O8. Bytownite by definition must contain 30-10% sodium to 70-90% calcium in the sodium/calcium position in the crystal structure.
LocationUSA ▹ Minnesota. Near Crystal Bay.
PhotographerShannon Heinle. 2002-09-13.
CollectionUniversity of North Dakota Mineralogy Collection #1693.
Key wordsbytownite, feldspar, plagioclase series
Tech details460 KB. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number2918