Difference between revisions of "Epsomite"
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== Description == | == Description == | ||
| − | A [http://cameo.mfa.org/materials/fullrecord.asp?name=magnesium | + | A [http://cameo.mfa.org/materials/fullrecord.asp?name=magnesium%20sulfate magnesium sulfate] mineral commonly found as an [http://cameo.mfa.org/materials/fullrecord.asp?name=efflorescence efflorescence] on mine and cave walls. Epsomite was discovered at Epsom (Surrey England) in 1695 where it formed from the evaporation of mineral waters. The colorless or white salt often contains trace minerals, such as [http://cameo.mfa.org/materials/fullrecord.asp?name=iron iron] or [http://cameo.mfa.org/materials/fullrecord.asp?name=calcium calcium]. Epsomite is purified and sold as Epsom salts for mineral baths. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Authority == | == Authority == | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "epsomite" | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "epsomite" Encyclopædia Britannica [Accessed December 4, 2001](B/W photo) |
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Epsomite (Accessed Sept. 7, 2005) | * Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Epsomite (Accessed Sept. 7, 2005) | ||
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* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | ||
| − | * | + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
Revision as of 06:28, 24 July 2013
Description
A magnesium sulfate mineral commonly found as an efflorescence on mine and cave walls. Epsomite was discovered at Epsom (Surrey England) in 1695 where it formed from the evaporation of mineral waters. The colorless or white salt often contains trace minerals, such as iron or calcium. Epsomite is purified and sold as Epsom salts for mineral baths.
Synonyms and Related Terms
Epsom salts; bitter salts;
Other Properties
Soluble in water. Orthorhombic crystals. Bitter to salty taste.
Fracture = conchoidal. Luster = vitreous to earthy. Streak = white
| Composition | MgSO4 - 7H2O |
|---|---|
| Mohs Hardness | 2.0 - 2.5 |
| Density | 1.68 |
Additional Information
Mineralogy Database: Epsomite
Authority
- Encyclopedia Britannica, http://www.britannica.com Comment: "epsomite" Encyclopædia Britannica [Accessed December 4, 2001](B/W photo)
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Epsomite (Accessed Sept. 7, 2005)
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998