digplanet beta 1: Athena
Share digplanet:


Applied sciences






















For other uses, see Jasper (disambiguation).
Jasper outcrop, Bucegi Mountains, Romania

Jasper, an aggregate of microquartz and/or chalcedony and other mineral phases,[1][2] is an opaque,[3] impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to iron(III) inclusions. The mineral aggregate breaks with a smooth surface and is used for ornamentation or as a gemstone. It can be highly polished and is used for vases, seals, and snuff boxes. The specific gravity of jasper is typically 2.5 to 2.9.[4] Along with Heliotrope (bloodstone), jasper (green with red spots) is one of the traditional birthstones for March. Jaspilite is a banded iron formation rock that often has distinctive bands of jasper.

Etymology and history[edit]

Moveable ring from 664 to 322 BC (Late Period). Green jasper and gold.[5] The Walters Art Museum
Goat-headed basket carved from red jasper. Russian, late 19th century, Kremlin Armoury

The name means "spotted or speckled stone", and is derived via Old French jaspre (variant of Anglo-Norman jaspe) and Latin iaspidem (nom. iaspis)) from Greek ἴασπις iaspis, (feminine noun)[6] from an oriental language (cf. Hebrew יושפה yushphah, Akkadian yashupu).[7]

Green jasper was used to make bow drills in Mehrgarh between 4th and 5th millennium BC.[8] Jasper is known to have been a favorite gem in the ancient world; its name can be traced back in Arabic, Persian, Hebrew, Assyrian, Greek and Latin.[9] On Minoan Crete, jasper was carved to produce seals circa 1800 BC, as evidenced by archaeological recoveries at the palace of Knossos.[10]

Although the term jasper is now restricted to opaque quartz, the ancient iaspis was a stone of considerable translucency including nephrite.[2] The jasper of antiquity was in many cases distinctly green, for it is often compared to the emerald and other green objects. Jasper is referred to in the Niebelungenlied as being clear and green. Probably the jasper of the ancients included stones which would now be classed as chalcedony, and the emerald-like jasper may have been akin to the modern chrysoprase. The Hebrew word yushphah may have designated a green jasper.[11] Flinders Petrie suggested that the odem, the first stone on the High Priest's breastplate, was a red jasper, whilst tarshish, the tenth stone, may have been a yellow jasper.[12]


Jasper is an opaque rock of virtually any color stemming from the mineral content of the original sediments or ash. Patterns arise during the consolidation process forming flow and depositional patterns in the original silica rich sediment or volcanic ash. Hydrothermal circulation is generally thought to be required in the formation of jasper.[citation needed]

Jasper can be modified by the diffusion of minerals along discontinuities providing the appearance of vegetative growth, i.e., dendritic. The original materials are often fractured and/or distorted, after deposition, into myriad beautiful patterns which are to be later filled with other colorful minerals. Weathering, with time, will create intensely colored superficial rinds.

The classification and naming of jasper presents a challenge.[13] Terms attributed to various well-defined materials includes the geographic locality where it is found, sometimes quite restricted such as "Bruneau" (a canyon) and "Lahontan" (a lake), rivers and even individual mountains, many are fanciful such as "Forest Fire" or "Rainbow", while others are descriptive such as "Autumn", "Porcelain" or "Dalmatian". A few are designated by the country of origin such as a Brown Egyptian or Red African.

Picture jaspers exhibit combinations of patterns (such as banding from flow or depositional patterns (from water or wind), dendritic or color variations) resulting in what appear to be scenes or images, on a cut section. Diffusion from a center produces a distinctive orbicular appearance, i.e., Leopard Skin Jasper, or linear banding from a fracture as seen in Leisegang Jasper. Healed, fragmented rock produces brecciated (broken) jasper. While these "Picture Jaspers" can be found all over the world, specific colors or patterns are more unique based upon the geographic region from which they originate. Oregon's Biggs Jasper and Bruneau Jasper from Bruneau Canyon near the Bruneau River in Idaho are known as particularly fine examples. Other examples can be seen at Llanddwyn Island in Wales.[14]

The term basanite has occasionally been used to refer to a variety of jasper, for example a black flinty or cherty jasper found in several New England states of the USA. Such varieties of jasper are also informally known as Lydian stone or lydite and have been used as touchstones in testing the purity of precious metal alloys.[15]


Varieties of jasper
Brecciated red jasper tumbled smooth, 1 in (2.5 cm) 
Brecciated yellow jasper, cut and oiled 
Dalmatian jasper, Pune, India 
Green jasper rough, Montjuïc, Barcelona 
Orbicular jasper, 5 cm (2.0 in), Madagascar 

See also[edit]


  1. ^ "U.S. Geological Survey, Chalcedony Site". www.USGS.gov. 
  2. ^ a b Kostov, R. I. 2010. Review on the mineralogical systematics of jasper and related rocks. – Archaeometry Workshop, 7, 3, 209-213. PDF
  3. ^ "Jasper". Mindat.org. 
  4. ^ Dietrich, R. V. (2005-05-23). "Jasper". GemRocks. Central Michigan University. 
  5. ^ "Finger Ring with a Representation of Ptah". The Walters Art Museum. 
  6. ^ "Strong's G2393-iaspis". Lexicon. Blue Letter Bible. 
  7. ^ "Jasper" at etymonline.com
  8. ^ Kulke, Hermann; Rothermund, Dietmar (2004). A History of India. Routledge. p. 22. ISBN 0-415-32920-5. 
  9. ^ "Jasper". Gem by Gem. International Colored Gemstone Association. 
  10. ^ Hogan, C. Michael (2008-04-14). "Knossos fieldnotes". The Modern Antiquarian. 
  11. ^  One or more of the preceding sentences incorporates text from a publication now in the public domainFrederick William Rudler (1911). "Jasper". In Chisholm, Hugh. Encyclopædia Britannica (11th ed.). Cambridge University Press. 
  12. ^ Hastings's Dict. Bible, 1902, as cited in 1911 Britannica.
  13. ^ "World of Jaspers". Hans Gamma. 
  14. ^ Jasper Gemological Information - International Gem Society (IGS) Retrieved 16 January, 2015
  15. ^ "Mindat data for basanite". Mindat.org. 2012-10-15. Retrieved 2013-03-24. 

External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Jasper — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
1000000 videos foundNext > 

Steven Universe - Jasper & Lapis Lazuli Gem Fusion Malachite (Clip) Jail Break

Jasper the new Gem has no choice but to fusion, and the only person around is Lapis Lazuli and with them, they fused into Malachite! Subscribe to me here on my channel for more videos http://www.yo.

Tyler, The Creator - Bitch Suck Dick Featuring Jasper And Taco

Directed By: Wolf Haley Edited By: Dave McCary And Wolf Haley From The Album GOBLIN ( yes, its on itunes) Niggas In This Video Include: ANTWAN DIXON NAKEL SMITH MAN CHILD LOUIE LOPEZ ...

Jasper of Charlie Row Campo - West Coasting (Official Music Video)

New single by Jasper Loco (of Charlie Row Campo) - West Coasting. Off the new album "Gutter Tales" out now! Directed by: SANTO LOUIE contact armentastudios@gmail.com Buy Gutter Tales now...

Jasper Forks - Another Sleepless Night (Official Video HD)


2012 - Jasper National Park, Alberta, Canada

I'm especially proud to share this particular video of mine. In my opinion, it is the first true CANADIAN video I've put together that represents some of the most beautiful western parts of...

Stolen dog Jasper is reunited with his owner.

This is an amazing story which demonstrates the importance of microchipping your dog. Jasper is a Whippet who was brought into our Hurstpierpoint Clinic on Thursday 12th March after he had...

Penalties schieten met Jasper Cillessen - JOHNNY IN ORANJE

Kijk meer video's op http://www.rtlxl.nl/#!/gemist/johnny-in-oranje-316916. Johnny is bereid om keeper Jasper Cillessen op en top voor te bereiden op het toernooi in Brazilië. Hij kruipt in...

Lapis Lazuli And Jasper Fuse [Clip] (Steven Universe) Malachite

All rights go to cartoon network. I did not make this show. All rights go to Rebecca Sugar.

Steven Universe - Ruby and Sapphire fuse and fight Jasper

Steven Universe-Jail Break This is Garnet she is made of love 💖and stronger than you👊

Jasper - Der HDL-Song - [original & live]

Weitere Infos unter www.jaspermusik.de ---------------------------------------------------------------------- DiEseS LieD IsT FüR aLLe MeInE LieBEn FReuNdE UnD soLCHe, DiE eS WerDeN wOLLeN!...

1000000 videos foundNext > 

2866667 news items


Tue, 31 Mar 2015 06:17:57 -0700

RIDGELAND, S.C. — Deputies are investigating a fatal shooting in Jasper County that happened at 10 p.m. Monday. Jasper County Sheriff's Office responded to the area of Family Dr. and Battery Point Rd. in reference to numerous 911 calls of a shooting ...
Jasper County Sun Times
Tue, 31 Mar 2015 07:03:45 -0700

Hearts… to the community for helping the United Way of the Lowcountry reach its $2.4 million goal. The United Way saw a $100,000 increase from last year and Jasper played a big role by exceeding its goal. Jasper's objective was $135,782, but the ...

Elmira Star-Gazette

Elmira Star-Gazette
Tue, 31 Mar 2015 04:58:34 -0700

A Jasper-Troupsburg school board member accused of supplying alcohol to minors at her Greenwood home was found not guilty Monday in Town of Woodhull Court, according to our media partner WENY-TV. Town Justice George Farrand found Lisa Tracy ...
Jasper County Sun Times
Mon, 30 Mar 2015 13:48:45 -0700

COLUMBIA - Jasper County is in a class of its own, or rather, a vehicle of its own, traveling to work, and surpassing theother 45 counties due to its high percentage of residents that commutes alone more than 30 minutes. Residents in rural Jasper ...


Fri, 27 Mar 2015 20:30:40 -0700

A Jasper pain clinic suspected of being a "pill mill" was raided Friday by federal and local authorities and the doctor in charge was taken into custody. Dr. Muhammad Wasim Ali, who owns and practices at Walker Rural Health Services/Jasper Neurological ...

M2M World News (press release)

M2M World News (press release)
Tue, 31 Mar 2015 00:07:30 -0700

The PLAT.ONE and Jasper IoT solution both accelerates and simplifies the process of connecting enterprises with a Jasper Partner Operator and managing their IoT services within the PLAT.ONE solution. This partnership pairs the visibility and management ...


Sun, 29 Mar 2015 11:56:15 -0700

Jasper is a whippet dog who was brought to the Hurstpierpoint Clinic in the United Kingdom on March 12 after being found wandering nearby. Jasper was scanned for a microchip, where he was found registered to an address in Leighton Buzzard, ...
Carthage Press
Tue, 31 Mar 2015 08:11:15 -0700

Seven people are running for two open seats on the Avilla R-13 Board of Education, while three people are running for the Jasper R-5 Board of Education. In addition, three people are running for Jasper Mayor and two people are running for each of the ...

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight