Difference between revisions of "Carnallite"
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== Physical and Chemical Properties == | == Physical and Chemical Properties == | ||
| − | Orthorhombic crystalline system usually occurring in masses. Soluble in water. Deliquesces in humid environments. Strongly phosphorescent. Luster = greasy Fracture = conchoidal | + | * Orthorhombic crystalline system usually occurring in masses. |
| + | * Soluble in water. | ||
| + | * Deliquesces in humid environments. | ||
| + | * Strongly phosphorescent. | ||
| + | * Luster = greasy | ||
| + | * Fracture = conchoidal | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 21: | Line 26: | ||
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.62 | + | | 1.62 g/ml |
|- | |- | ||
! scope="row"| Refractive Index | ! scope="row"| Refractive Index | ||
Latest revision as of 13:54, 20 May 2022
Description
A naturally occurring mineral composed of the hydrated chloride salt of Potassium and Magnesium. Carnallite is a white or reddish, translucent mineral with a greasy luster. It often occurs in deposits rich in Potash and is found in Canada, France, Poland, Germany, Spain, Tunisia, Iran, and the western U.S. Carnallite is used in fertilizers. It has also been identified as a chloride Efflorescence.
Synonyms and Related Terms
carnalita (Esp.); Carnallit (Deut.); carnallita (Port.)
Physical and Chemical Properties
- Orthorhombic crystalline system usually occurring in masses.
- Soluble in water.
- Deliquesces in humid environments.
- Strongly phosphorescent.
- Luster = greasy
- Fracture = conchoidal
| Composition | KMgCl3-6H2O |
|---|---|
| Mohs Hardness | 1.0 - 2.5 |
| Density | 1.62 g/ml |
| Refractive Index | 1.46;1.47;1.44 |
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- 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
- Encyclopedia Britannica, http://www.britannica.com Comment: "Carnallite." (Accessed 26 Apr. 2004).