Dacite

Varrious types of dacite

Description

An igneous volcanic rock that contains quartz and plagioclase feldspar. Dacite has a crystalline texture and can contain numerous types of inclusions. Dacite deposits have been found in Romania, Greece, Spain (Almeria), Scotland (Argyll), New Zealand, the Andes, and the U.S. (Nevada).

Synonyms and Related Terms

Dazit (Deut.); dacite (Fr.); dacito (Port.)

Additional Images

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  Dacite

Authority

• Anne Grimmer, Glossary of Building Stone Terms, A Glossary of Historic Masonry Deterioration Problems and Preservation Treatments, National Park Service, Washington DC, 1984

• Encyclopedia Britannica, http://www.britannica.com Comment: "dacite." Encyclopædia Britannica.11 Nov. 2004 .

• Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Dacite (accessed Nov. 11, 2004)