A Geoscience Digital Image Library

DescriptionChabazite is a hydrated calcium aluminum silicate. Chabazite, also known as acadialite, is a lesser known zeolite. Chabazite forms in the petrified bubbles (called vesicles) of volcanic rocks that have had a slight amount metamorphism. Chabazite's structure has a typical zeolite openness that allows large ions and molecules to reside and move around inside the overall framework. The structure contains open channels that allow water and large ions to travel into and out of the crystal structure. The size of these channels controls the size of the molecules or ions and therefore a zeolite like chabazite can act as a chemical sieve. The chemical formula for chabazite is CaAl2Si4O12ยท6H2O. Its name comes from the Greek chabazios, meaning tune or melody, one of twenty stones named in the poem Peri lithos, which extolled the virtues of minerals.
LocationAustralia ▹ Victoria. Near Melbourne.
PhotographerShannon Heinle. 2001-02-15.
CollectionUniversity of North Dakota Mineralogy Collection #1867.
Key wordschabazite, silicate, zeolite
Tech details293 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number81