Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (6 online) Mindat Auctions

Prase

Big Photo

Cape Calamita Mine (Calamita Mine), Capoliveri, Elba Island, Livorno Province, Tuscany, Italy
© Sarah Sudcowsky

Show Prase Photos (42)
A variety of Quartz

Originally, the varietal name "prase" was applied to a dull leek-green colored quartzite (a rock, not a mineral); but over the years it has been also applied to other materials, particularly a green colored jasper of similar color. For perhaps more than a century it was restricted to granular micro-crystalline varieties of quartz and the original quartzite; but in recent years euhedral crystals of quartz having a similar leek-green color have had the term applied to them as well, expanding the definition beyond micro-crystalline forms. Now it is simply a color descriptor for quartz: If it is leek-green, it is called "prase" - whether it is micro- or macro-crystalline, and no matter what causes the color. Basically, the term no longer has any scientific rigor - it has become a general term; it can't even truely be called a varietal name any longer - since it covers more than one material.

Classification of Prase

mindat.org URL:http://www.mindat.org/min-6703.html
Please feel free to link to this page.

Other Names for Prase

Synonyms:
EdinitePrasemPrasioPrasius
Other Languages:
Varieties:
Prase-malachite

Other Information

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

References for Prase

Reference List:"Manual of Mineralogy after J. D. Dana", by Klein, Cornelis, and Hurlbut, Jr., Cornelius, 20th Edition, 1985, John Wiley & Sons, publisher, New York, Chichester, Brisbane, Toronot, Singapore: pg. 442.

"Standard Catalog of Gem Values," 2nd Edition, by Miller, Anna and Sinkankas, John, Geoscience Press, Tucson, Arizona, USA, pg. 85.

"Dana's System of Mineralogy - Volume III Silica Minerals" 7th edition, by Clifford Frondel, John Wiley and Sons, New York and London. 1962 pg. 219.

Articles/Blogs about Prase

Internet Links for Prase

Search Engines:
  • Look for Prase on Google
  • Look for Prase images on Google
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Buy from David K Joyce minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Buy Fine Minerals from mineralsweb.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Search for Prase at Thames Valley Minerals
  • The Arkenstone - Fine Minerals
  • Buy fine minerals and gemstones from Pala International
  • Lapis Mineral Magazin
  • rare and unusual minerals mainly crystallized
  • Wendel Minerals - Auktion & Shop
  • Search for - Prase - on e-Rocks Mineral Sales & Auctions
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Prase

    Hide Locality List
    The 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.
    These maps work faster with Firefox!
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • New South Wales
      • Parry Co.
        • Nundle
    • Western Australia
      • Coolgardie Shire
        • Spargoville
      • Menzies Shire
        • Comet Vale
    		Grguric, B. A., Pring, A., Bevan, A. W. R. and Downes, P. J. (2006): The minerals of Comet Vale, Western Australia. Austral. J. Mineral. 12, 9-23.
    Austria
     
    • Carinthia
      • Hohe Tauern Mts
        • Ankogel group
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Salzburg
      • Hohe Tauern Mts
        • Gastein valley
          • Anlauf valley
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Tyrol
      • East Tyrol
        • Virgen valley
          • Prägraten
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • North Tyrol
        • Sellrain valley
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Germany
     
    • Bavaria
      • Franconia
        • Franconian Forest
          • Bad Berneck
    		F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt und Druckerei GmbH (Hof), 1984
    • Brandenburg
      • Großräschen
        • Saalhausen
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Lübbenau
        • Calau
          • Plieskendorf
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    • Hesse
      • Odenwald
        • Bensheim
          • Roßbach
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Saxony
      • Erzgebirge
        • Breitenbrunn District
          • Breitenbrunn
    		Wittern: "Mineralfundorte in Deutschland", 2001
        • Schwarzenberg District
          • Beierfeld
    		Wittern: "Mineralfundorte in Deutschland", 2001
      • Vogtland
        • Reichenbach
          • Neumark
    		J. Müller, Werdau, Saxony
    Greece
     
    • Aegean Islands (Aiyaíon) Department
      • Kykládes Prefecture
        • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
    		No reference listed
    L. Rantos collection
    • Macedonia Department
      • Dráma Prefecture
        • Kato Nevrokopi basin
          • Kato Vrontou
    		Christos Spiromitros Collection
    Italy
     
    • Piedmont
      • Torino Province
        • Canavese District
          • Léssolo
            • Cálea
    		Campostrini, I. (2001): Le miniere di Brosso. Monografie XXIX Museo Regionale di Scienze Naturali - Torino, 185 pp.
    • Trentino-Alto Adige
      • Bolzano Province (South Tyrol)
        • Sarentine Alps (Sarntal Alps)
    		Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
      • Trento Province
        • Fassa Valley
          • Buffaure Group
    		De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    • Tuscany
      • Livorno Province
        • Elba Island
          • Capoliveri
            • Cape Calamita Mine (Calamita Mine)
    		no ref. in literature
          • Rio Marina
            • Rio Mine (Rio Marina Mine)
    		L. Rossato, M. Benvenuti, 2002 - Guida al sentiero geo-mineralogico attraverso la Miniera di Rio Marina - Regione Toscana, Firenze
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol
    Morocco
     
    • Meknès-Tafilalet Region
      • Er Rachidia Province
        • High Atlas Mts
    		A.M.I. Martins collection
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk)
          • Kavalerovo Mining District
    		[John Betts; Rob Lavinsky]
    UK
     
    • England
      • Cornwall
        • Camborne - Redruth - St Day District
          • Camborne
            • Tuckingmill
    		Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
    USA
     
    • California
    		Pelletier, 1962. Mineral Species & Localities of Marin County
    • Colorado
      • Costilla Co.
    		Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
    • New York
      • New York City
        • Staten Island Borough
    		Kunz, 1892. Gems & Precious Stones of N. America, p. 120.
    • Pennsylvania
      • Lancaster Co.
        • Fulton Township
    		Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
    • Rhode Island
      • Providence Co.
    		AmMin 11:334-340
    • Utah
      • Beaver Co.
        • Mineral Range
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Virginia
    		Minerals of Virginia 1990 by R. V. Dietrich
        • Leesburg
    		Dana 6: 1072.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.