A Geoscience Digital Image Library

TitleClinopyroxene (diallage) from Sonoma County, California
DescriptionDiallage is a name used (uncommonly) for any dark green, brown, gray or bronze pyroxene that has a metallic or brassy luster (schiller). Diallage is typically a variety of augite or diopside, and often forms as a result of weathering and alteration. This sample is about 3.5 cm across.
LocationUSA ▹ California ▹ Sonoma
PhotographerShannon Heinle. 2001-04-24.
CollectionUniversity of North Dakota Mineralogy Collection #E 11.170.
Key wordsclinoyroxene, diallage
Tech details316 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number407