Difference between revisions of "Lazulite"
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A minor blue-green color gemstone composed of iron aluminum phosphate. Although its name has caused some confusion, it has no connection with [[lazurite]], the main ingredient in [[lapis lazuli]]. Lazulite is a translucent stone that has been found in Switzerland (Zermatt), Austria, Sweden, Malagasy Republic, Brazil (Minas Gerais), Canada (Yukon), and the U.S.(California, Georgia). It was used for inlays on an amulet from the Oxxus Treasure (Ogden 1982). | A minor blue-green color gemstone composed of iron aluminum phosphate. Although its name has caused some confusion, it has no connection with [[lazurite]], the main ingredient in [[lapis lazuli]]. Lazulite is a translucent stone that has been found in Switzerland (Zermatt), Austria, Sweden, Malagasy Republic, Brazil (Minas Gerais), Canada (Yukon), and the U.S.(California, Georgia). It was used for inlays on an amulet from the Oxxus Treasure (Ogden 1982). | ||
| − | + | [[[SliderGallery rightalign|lazuliteRS.jpg~Raman]]] | |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Lazulit (Deut.) | Lazulit (Deut.) | ||
| − | + | ==Physical and Chemical Properties== | |
| − | |||
| − | == | ||
| − | Monoclinic system with bipyramidal crystals or grains. Good cleavage in one direction. Fracture = uneven. Luster = vitreous to dull. Streak = white. | + | * Monoclinic system with bipyramidal crystals or grains. |
| + | * Good cleavage in one direction. | ||
| + | * Fracture = uneven. | ||
| + | * Luster = vitreous to dull. | ||
| + | * Streak = white. | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 23: | Line 25: | ||
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 3.0-3.4 | + | | 3.0-3.4 g/ml |
|- | |- | ||
! scope="row"| Refractive Index | ! scope="row"| Refractive Index | ||
| 1.60; 1.63; 1.64 | | 1.60; 1.63; 1.64 | ||
|} | |} | ||
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== Comparisons == | == Comparisons == | ||
| Line 39: | Line 35: | ||
[[media:download_file_469.pdf|Properties of Common Gemstones]] | [[media:download_file_469.pdf|Properties of Common Gemstones]] | ||
| − | == | + | ==Resources and Citations== |
| + | * Mineralogy Database: [http://www.webmineral.com/data/Lazulite.shtml Lazulite] | ||
* Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | * Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | ||
| Line 45: | Line 42: | ||
* Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982 | * Jack Odgen, ''Jewellery of the Ancient World'', Rizzoli International Publications Inc., New York City, 1982 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "lazulite." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "lazulite." Accessed 7 Apr. 2005 . |
* 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 | ||
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Lazulite (Accessed Sept. 7, 2005) |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 08:51, 16 September 2022
Description
A minor blue-green color gemstone composed of iron aluminum phosphate. Although its name has caused some confusion, it has no connection with Lazurite, the main ingredient in Lapis lazuli. Lazulite is a translucent stone that has been found in Switzerland (Zermatt), Austria, Sweden, Malagasy Republic, Brazil (Minas Gerais), Canada (Yukon), and the U.S.(California, Georgia). It was used for inlays on an amulet from the Oxxus Treasure (Ogden 1982).
Synonyms and Related Terms
Lazulit (Deut.)
Physical and Chemical Properties
- Monoclinic system with bipyramidal crystals or grains.
- Good cleavage in one direction.
- Fracture = uneven.
- Luster = vitreous to dull.
- Streak = white.
| Composition | MgAl2(OH)2(PO4)2 |
|---|---|
| Mohs Hardness | 5.0 - 6.0 |
| Density | 3.0-3.4 g/ml |
| Refractive Index | 1.60; 1.63; 1.64 |
Comparisons
Properties of Common Gemstones
Resources and Citations
- Mineralogy Database: Lazulite
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
- Encyclopedia Britannica, http://www.britannica.com Comment: "lazulite." Accessed 7 Apr. 2005 .
- C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
- Wikipedia: http://en.wikipedia.org/wiki/Lazulite (Accessed Sept. 7, 2005)