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Prase

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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.

Compare also plasma.

Visit gemdat.org for gemological information about Prase.

Classification of Prase

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Other Names for Prase

Name in Other Languages:

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.

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.

Internet Links for Prase

Specimens:
The following Prase specimens are currently listed for sale on minfind.com.

Localities for Prase

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
      • Ankogel group
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
R. Hasler Collection
  • Salzburg
    • Hohe Tauern
      • 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)
China
 
  • Guizhou Province
    • Qianxi'nan Autonomous Prefecture
      • Qinglong Co.
        • Dachang Sb ore field
Baiwu Hao (2010): Geology and Exploration 46(4), 741-750
Yu Chen, Xiucheng Liu, and Qihou Zhang (1984): Mineral Deposits 3(3), 1-12; Yong Xia, Qihou Zhang, and Huabin Huang (1993): Geology and Prospecting 29(10), 48-53
  • Inner Mongolia Autonomous Region
    • Ulanhad League (Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
        • Huanggang Fe-Sn deposit (Huanggangliang Mine; Huanggang Mine)
Ottens, B. and G. Neumeier (2012) The Huanggang Mine, Inner Mongolia, China. Mineralogical Record 43:529-563
Ecuador
 
  • Guayas Province
    • Guayaquil Canton
      • Guayaquil
        • Pascuales
          • La Germania
Alejandro Félix Gutiérrez
France
 
  • Auvergne
    • Haute-Loire
      • Monistrol-sur-Loire
        • Saint-Ferreol-d'Auroure
BRGM (1980) - Fiche BSS 07684X4001/GT
  • Brittany
    • Finistère
Lacroix, A. (1910): Minéralogie de la France et de ses colonies, Librairie Polytechnique, Ch. Béranger Editeur, Tome III, 67.
  • Languedoc-Roussillon
    • Pyrénées-Orientales
      • Prats-de-Mollo-la Preste (Prats de Molló-la Presta)
Companyo, L. (1861): Histoire naturelle des Pyrénées-Orientales, Imprimerie de J.-B. Alzine, Tome I, 346.
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
        • Hochstädten
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 Department (Aiyaíon)
    • Kykládes Prefecture
      • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
Hyrsl, J.; Niedermayr, G. (2003); Magic Worlds - Inclusion in Quartz - Geheimnisvolle Welt - Einschlüsse im Quarz
          • Avissalos (Avyssalos; Avessalos; Aghriomelisa Mountain)
Fritz Schreiber collection and field observations
Christos Spiromitros specimens
L. Rantos collection
  • Macedonia Department
    • Dráma Prefecture
      • Kato Nevrokopi basin
        • Kato Vrontou
Christos Spiromitros Collection
Ireland
 
  • Co. Wicklow
    • Croghan Kinshela Mountain
Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 627-634
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
Ref. Orlandi, P., & Pezzotta, F. (1997). Minerali dell'Isola d'Elba. Edizioni Novecento Grafico, Bergamo.
          • 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 (Errachidia Province)
A.M.I. Martins collection
Nepal
 
  • Bagmati Zone
    • Dhading District
António Manuel Ináçio Martins
Russia
 
  • Far-Eastern Region
    • Primorskiy Kray
      • Kavalerovo Mining District
[John Betts; Rob Lavinsky]; Dmitriy I. Belakovskiy (2003): New Data on Minerals: 38: 101-112.
Spain
 
  • Basque Country
    • Álava
      • Zuia
        • Lukiano
Personally collected by Roberto Galcerán
  • Catalonia
    • Girona (Gerona)
      • Ripollès
        • Molló
          • Espinavell (Espinabell)
            • Costabona Mtn
Mata i Perelló, J.M. (1990). Els minerals de Catalunya. Institut d´Estudis Catalans
  • Murcia
    • La Unión
      • Sierra Minera de Cartagena-La Unión
        • Sancti Spiritu
FMF Forum
UK
 
  • England
    • Cornwall
      • Camborne - Redruth - St Day District
        • Camborne
          • North Roskear
Hall, T.M. (1868): Edward Stanford (London), 168 pp., Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
      • St Just District
        • St Just
          • Cot Valley
Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 190
USA
 
  • California
Pelletier, 1962. Mineral Species & Localities of Marin County
    • Napa Co.
      • Knoxville area
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282.
  • Colorado
    • Costilla Co.
Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
  • Massachusetts
    • Essex Co.
William Prescott (1852) Journal of the Essex County Natural History Society: containing various Communications to the Society pp 78-91
  • New York
    • New York City
Kunz, 1892. Gems & Precious Stones of N. America, p. 120.
  • North Carolina
    • Macon Co.
Pratt,Joseph Hyde.,(1933) Gems and Gem Minerals of North Carolina; American Mineralogist,Vol.18,No.4,April,1933
  • Pennsylvania
    • Chester Co.
      • Newlin Township
        • Unionville
Gordon, S.G. (1922) The Mineralogy of Pennsylvania. 255 pp., Philadelphia.
    • Lancaster Co.
      • State Line Chromite District
        • Fulton Township
Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Collected April of 2012- David S. Bernstein
  • Rhode Island
    • Providence Co.
AmMin 11:334-340
Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston
  • 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  
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