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Iris Agate

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About Iris AgateHide

A variety of Agate

An iridescent variety of agate - when sliced into a thin section it exhibits all the colours of the spectrum when viewed in transmitted light.

Visit gemdat.org for gemological information about Iris Agate.

Chemical Properties of Iris AgateHide


Synonyms of Iris AgateHide

Other Language Names for Iris AgateHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Iris Agate associated with Plume AgateSiO2
1 photo of Iris Agate associated with δ-QuartzSiO2
1 photo of Iris Agate associated with Quartz-betaSiO2
1 photo of Iris Agate associated with

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 Iris AgateHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Jones, F.T. (1952) Iris agate: Am. Min.: 37: 578-587.

Internet Links for Iris AgateHide

Localities for Iris AgateHide

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.
South America
  • California
    • Alameda Co.
      • Berkeley
Jones, F.T. (1952) Iris Agate. American Mineralogist: 37: 578-587; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 344.
    • Kern Co.
      • Mojave-Rosamond Mining District (Mojave Mining District)
        • Rosamond
          • Rosamond Hills
Chenard, G., and Chenard, D. (1962) Kern County Agate: Lapidary Journal, v. 16, no. 1, p. 106-107.
    • Riverside Co.
      • Little Chuckwalla Mountains
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10286313.
  • Idaho
    • Custer Co.
      • Bay Horse Mining District
  • New Mexico
    • Catron Co.
  • Oregon
    • Benton Co.
Dorothy M. Schlegal (1957) Gem Stones of the United States : USGS Bulletin 1042-G
"Dan Costian" Collection
Heaney, P. J., & Davis, A. M. (1995). Observation and origin of self-organized textures in agates. Science, 269(5230), 1562.; Oregon Agate and Mineral Society (Map, 1971)
  • Tennessee
    • Bedford Co.
Zeitner ,1968. Appalachian Mineral & Gem Trails ; Travis A. Paris (2011) Tennessee Mineral Locality Index. Rocks & Minerals 86:300-328
  • Texas
    • Brewster Co.
      • Alpine
Mineral and/or Locality  
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