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Prasiolite

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Formula:
SiO2
Colour:
green
Lustre:
Vitreous
A variety of Quartz

A green transparent variety of macrocrystalline quartz. Compare with prase and plasma.

Not to be confused with prasolite!

Visit gemdat.org for gemological information about Prasiolite.


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Physical Properties of PrasioliteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
green
Comment:
At least some prasiolite is dichroic (blue-green / olive-green)

Chemical Properties of PrasioliteHide

Formula:
SiO2

Other Language Names for PrasioliteHide

Afrikaans:Prasiolite
German:Prasiolith

Common AssociatesHide

Associated Minerals Based on Photo Data:
Agate4 photos of Prasiolite associated with Agate on mindat.org.
Amethyst2 photos of Prasiolite associated with Amethyst on mindat.org.

Other InformationHide

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 PrasioliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nassau, K. (1977) A unique green quartz. American Mineralogist, 62, 589-590.
Paradise, T.R. (1982) The natural formation and occurrence of green quartz. Gems and Gemmology, 18, 39-42.
Hebert, L.B. (2008) Development of color in greenish quartz. Dissertation, California Institute of Technology. 2nd part of a Thesis (Dissertation), California Institute of Technology.
Hebert, L.H., Rossman, G.R. (2008) Greenish quartz from the thunder bay amethyst mine panorama, thunder bay, Ontario, Canada. The Canadian Mineralogist: 46(1): 111-124.
Lameiras, F.S., Nunes, E.H.M., Vasconcelos, W.L. (2009) Infrared and Chemical Characterization of Natural Amethysts and Prasiolites Colored by Irradiation. Materials Research, 12(3), 315-320.

Internet Links for PrasioliteHide

Localities for PrasioliteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada
 
  • Ontario
Hebert, L.H., Rossman, G.R. (2008) Greenish quartz from the thunder bay amethyst mine panorama, thunder bay, Ontario, Canada. The Canadian Mineralogist: 46(1): 111-124.
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Kaczawskie Mts
      • Nowy Kościół
http://www.spiriferminerals.com/163,New-prasiolite-find--Poland.html
Lwoweckie Lato Agatowe exhibition 2010; Praszkier, T., Bogdanski, J. & Siuda, R. (2011): Agates from Płóczki Górne, Lower Silesia, Poland. Warszawa 2011,Published by Spirifer Geological Society. 200p.
UK
 
  • England
    • Somerset
      • Banwell
Paul Render
Mineral and/or Locality  
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