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Jasper

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A variety of Chalcedony

In the traditional sense, jasper is a dense, opaque, microcrystalline variety of quartz (or more strictly, chalcedony), usually red, brown or yellow and coloured by oxides of iron. It has frequently been used as a decorative stone.

Confusingly the term is also used for other silicified rocks or decorative stones (in particular some varieties of rhyolite are often termed jasper).

Visit gemdat.org for gemological information about Jasper.

Classification of Jasper

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Other Names for Jasper

Name in Other Languages:
Azeri:Yəşəm
Czech:Jaspis
Dutch:Jaspis
Esperanto:Jaspo
Hebrew:ישפה
Italian:Diaspro
Japanese:碧玉
Latin:Iaspis
Latvian:Jašma
Lithuanian:Jaspis
Polish:Jaspis
Portuguese:Jaspe
Romanian:Jasp
Russian:Яшма
Simplified Chinese:碧玉
紅碧玉
Slovak:Jaspis
Spanish:Jaspe
Swedish:Jaspis

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Jasper

Localities for Jasper

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Mineral and/or Locality  
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