Jasper
A rock subtype
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About Jasper
Historically the name has long been used for an opaque to slightly translucent, generally red or brown to variably coloured, impure chalcedony or microcrystalline chert, usually containing abundant fine inclusions of hematite, iron hydroxides and other minerals. It is typically associated with banded iron formations.
It has also been used informally by lapidarists for many other opaque lapidary materials, including some igneous and sedimentary rocks.
Visit gemdat.org for gemological information about Jasper.
It has also been used informally by lapidarists for many other opaque lapidary materials, including some igneous and sedimentary rocks.
Visit gemdat.org for gemological information about Jasper.Unique Identifiers
Mindat ID:
2082
Long-form identifier:
mindat:1:1:2082:0
Classification of Jasper
Synonyms of Jasper
Other Language Names for Jasper
Varieties of Jasper
| Alladinite | A name given to a jasper found in Wabuska, Nevada. Also, unrelatedly, a name for a synthetic casein resin and possibly as a marketing name for gem diopside. |
| Ball Jasper | Jasper showing concentric red and yellow bands. Jasper occurring in spherical masses. |
| Bayate | A local name for a brown ferruginous variety of jasper. Originally described from Oriente Province, Cuba. |
| Bergerit | Local name for a net-like jasper. |
| Catalinite | |
| Chrysojasper | A variety of jasper colored by chrysocolla. |
| Creolite | A red-and-white banded jasper. [Webster (1962), Gems 755] Originally reported from California, USA. |
| Darlingite | Local name for a variety of jasper. A kind of lydian stone. Originally reported from Victoria, Australia. |
| Egyptian Jasper | A brown variety jasper (brown alternating with black stripes - Egypt) or red (blood-red, flesh red, yellow, brown - found in Baden), originally described from Egypt. |
| Irnimite | Very special multicolor black-blue-brown-white local variety of jasper or microquartzite associated with manganese ores of Taikan range in Eastern Siberia. Its coloration is caused by: black - manganese oxides (very often braunite), blue - alkali amphibol... |
| Jasponyx | A variety of Jasper. An old name for clouded Jasper. |
| Kinradite | An orbicular jasper originally observed in the San Francisco area and named for lapidary J J Kinrade. See: "Kinradite": Orbicular Jasper from San Francisco |
| Owyhee Jasper | |
| Pastelite | Variety of jasper exhibiting pastel colors. |
| Picture Jasper | |
| Quetzalitztli | Translucent, emerald-green jasper from Guatemala, colored by inclusions of chromium-bearing muscovite (fuchsite). |
| Riband Jasper | A banded jasper. |
| Vogelaugenjaspis | Literally "bird-eye jasper". |
| Watercolour jasper | Very special multicolor black-blue-brown-white local variety of jasper or microquartzite associated with manganese ores of Taikan range in Eastern Siberia. |
| Wilkite | A yellow, purple, pink, and green jasper from Willow Creek, Ada County, Idaho, USA. |
Common Associates
Associations Based on Photo Data:
| 109 photos of Jasper associated with Quartz | SiO2 |
| 69 photos of Jasper associated with Hematite | Fe2O3 |
| 68 photos of Jasper associated with 'Chalcedony' | SiO2 |
| 38 photos of Jasper associated with 'Agate' | SiO2 |
| 16 photos of Jasper associated with 'Petrified Wood' | |
| 14 photos of Jasper associated with Magnetite | Fe2+Fe3+2O4 |
| 14 photos of Jasper associated with Calcite | CaCO3 |
| 13 photos of Jasper associated with Pyrite | FeS2 |
| 12 photos of Jasper associated with Opal | SiO2 · nH2O |
| 8 photos of Jasper associated with Baryte | BaSO4 |
Internet Links for Jasper
mindat.org URL:
https://www.mindat.org/min-2082.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Jasper
Reference List:
Dayvault, Richard D. (2014) Genesis and Classification of Agates and Jaspers: A New Theory by Marco Campos-Venuti, Printed by Tophgrafia Luciani, Rome, Italy. Order from www.agatesandjaspers.com. 160 pages; 2012; $45 plus shipping (softbound). Rocks & Minerals, 89 (4) 378-380 doi:10.1080/00357529.2014.904675
Dead Camel Mountains, Churchill County, Nevada, USA