Difference between revisions of "Pyrrhotite"
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== Physical and Chemical Properties == | == Physical and Chemical Properties == | ||
| − | Luster = metallic. Streak = grayish-black. Magnetic. Tarnish = dark brown | + | * Luster = metallic. |
| + | * Streak = grayish-black. | ||
| + | * Magnetic. | ||
| + | * Tarnish = dark brown | ||
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 4.58-4.64 | + | | 4.58-4.64 g/ml |
|} | |} | ||
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 541 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 541 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "pyrrhotite" [Accessed December 11, 2001] | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "pyrrhotite" [Accessed December 11, 2001] |
* 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 07:49, 26 July 2022
Description
A bronze-like mineral composed of iron sulfide. Pyrrhotite is slightly magnetic and tarnishes with time. It occurs near pyrite (Iron disulfide), Chalcopyrite, or Magnetite deposits. Pyrrhotite has been found in Rumania (Kisbanya), Austria, Italy (Trentino), Germany (Saxony, Bavaria, Andreas-Berg), Switzerland, Norway (Kongsberg), Sweden, Brazil, Canada (Bristish Columbia, Ontario), Mexico (Chihuahua) and the U.S. (Maine, Connecticut, New York, Pennsylvania, Tennessee, California).
Synonyms and Related Terms
magnetic pyrite
Physical and Chemical Properties
- Luster = metallic.
- Streak = grayish-black.
- Magnetic.
- Tarnish = dark brown
| Composition | Fe(1-x)Sx e.g., Fe5S6 |
|---|---|
| Mohs Hardness | 3.5 - 4.5 |
| Density | 4.58-4.64 g/ml |
Resources and Citations
- Mineralogy Database: Pyrrhotite
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 541
- Encyclopedia Britannica, http://www.britannica.com Comment: "pyrrhotite" [Accessed December 11, 2001]
- 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
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976