Difference between revisions of "Pyragyrite"

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Mineralogy Database: [http://www.webmineral.com/data/Pyrargyrite.shtml Pyrargyrite]
 
Mineralogy Database: [http://www.webmineral.com/data/Pyrargyrite.shtml Pyrargyrite]
  
== Authority ==
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== Sources Checked for Data in Record ==
  
 
* C.W.Chesterman, K.E.Lowe, ''Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf, New York, 1979
 
* C.W.Chesterman, K.E.Lowe, ''Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf, New York, 1979

Revision as of 17:42, 1 May 2016

Description

The blackish red mineral composed of the double sulfide of silver and antimony. Pyragyrite is often associated with silver deposits. It has been found in Peru, Russia, Australia, Canada, Mexico, and the United States (Colorado, Nevada, Idaho). Pyragyrite was also called red silver, ruby silver ore, and dark red silver ore prior to the 1800s.

Synonyms and Related Terms

silver antimony sulfide; red silver; ruby silver ore; dark red silver ore

Other Properties

Hexagonal crystal system with good cleavage in one direction. Striated.

Fracture = conchoidal or uneven. Luster = adamantine. Streak = purplish red

Composition Ag3SbS3
Mohs Hardness 2.5
Density 5.8-5.9

Additional Information

Mineralogy Database: Pyrargyrite

Sources Checked for Data in Record

  • C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
  • Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985

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