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Glittering
Stones >> Semi
Precious Stones >> Hemimorphite
Semi Precious Stone Hemimorphite
Ammolite, the rare and valuable opal-like organic gemstone is
found primarily along the eastern slopes of Rocky Mountains of
United States and Canada. Ammolite is made of the fossilized shells
of ammonites, which in turn composed primarily of aragonite, the
same mineral that makes up nacreous pearls. It is one of several
biogenic gemstones; others include amber and pearl. In 1981, the
World Jewelry Confederation gives official gemstone status for
the gemstone ammolite. In the same year itself, the commercial
mining of ammolite was started. In 2004, it was nominated has
the official gemstone of the province of Alberta and official
gemstone for the city of Lethbridge in 2007.
The ammolite was also referred as aapoak (Kainah for "small,
crawling stone"), gem ammonite, calcentine, and korite. The latter
is a trade name given to the gemstone ammolite by the Alberta-based
mining company Korite International, the first and largest commercial
producer of ammolite.
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Historical Facts of Hemimorphite
| Refractive Index |
1.612 - 1.633 |
| Chemical Composition |
Zn4Si2O7(OH)2.H2O |
| Hardness |
4.5 - 5 |
| Density |
3.44 |
| Crystal Group |
Orthorhombic |
| Luster |
Vitreous, Silky |
| Ocurrence |
U.S.A, China, Mexico, England, Zambia |
| Color |
White, Blue, Greenish |
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Gem Jewelry Hemimorphite
| Hemimorphite Bracelet |
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| Hemimorphite Earring |
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| Hemimorphite Necklace |
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| Hemimorphite Rings |
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