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Fire Agate

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About Fire AgateHide

Formula:
SiO2
Lustre:
Vitreous, Waxy
Hardness:
6½ - 7
Name:
From the appearance of this chalcedony variety.
A variety of Chalcedony

A variety of chalcedony containing inclusions of goethite or limonite, producing an iridescent effect or "fire."

Visit gemdat.org for gemological information about Fire Agate.


Physical Properties of Fire AgateHide

Vitreous, Waxy
Transparency:
Translucent
Comment:
vitreous when polished
Hardness:
6½ - 7 on Mohs scale

Chemical Properties of Fire AgateHide

Formula:
SiO2

Other Language Names for Fire AgateHide

German:Feuerachat
Simplified Chinese:闪光玛瑙

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Fire Agate associated with QuartzSiO2
1 photo of Fire Agate associated with Riband Agate
1 photo of Fire Agate associated with Agate
1 photo of Fire Agate associated with ChalcedonySiO2
1 photo of Fire Agate associated with Sagenite (of Saussure)TiO2

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.

Internet Links for Fire AgateHide

Localities for Fire 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.
Mexico
 
    • Calvillo Municipality
      • Calvillo
Karel Bal Collection
    • Tepezalá Municipality
Carlos Medina specimens
  • Chihuahua
USA
 
Simpson, B., and Mitchell, J. R. 1989 Gem Trails of Arizona: Gem Guides Book company, Baldwin Park, California, 124 p.
    • Graham Co.
      • Aravaipa Mining District
        • Aravaipa Valley
MRDS database Dep. ID #10062449, MRDS ID #TC35913.
      • Black Hills
P Cristofono collection
      • Chaney Place
Simpson, B., and Mitchell, J. R. 1989 Gem Trails of Arizona: Gem Guides Book company, Baldwin Park, California, 124 p.
MRDS database Dep. ID #10137577, MAS ID #0040090173.; Canton, P. M. 1974 Fire Agates in Arizona and California. Lapidary Journal v. 31, no. 3, p. 812 - 818.; Natkaniec-Nowak, L., Dumańska-Słowik, M., Gaweł, A., Łatkiewicz, A., Kowalczyk-Szpyt, J., Wolska, A., ... & Ładoń, K. (2020). Fire agate from the Deer Creek deposit (Arizona, USA)–new insights into structure and mineralogy. Mineralogical Magazine, 84(2), 343-354.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 349.; Canton, P. M. 1974 Fire Agates in Arizona and California. Lapidary Journal v. 31, no. 3, p. 812 - 818.
      • Lone Star Mining District (Safford Mining District; Dos Pobres Mining District)
Rockhounding Arizona, 2nd: A Guide to 75 of the State's Best Rockhounding Sites By Gerry Blair
    • Greenlee Co.
Pabian R. Agate Lexicon UNL Database
Blair, 1992. Rockhounding Arizona, p.157.
    • La Paz County
      • Black Mountains
Peirce, H.W. (1969) Gem Materials, in USGS & Arizona Bureau of Mines, and U.S. Bureau of Reclamation, Mineral and Water Resources of Arizona, Arizona Bureau of Mines Bull. 180 (USGS Bull.871): 359. MRDS database Dep. ID file #10023619, MRDS ID #I000808.
    • Maricopa Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 349.; Canton, P. M. 1974 Fire Agates in Arizona and California. Lapidary Journal v. 31, no. 3, p. 812 - 818.
Blair, 1992. Rockhounding Arizona, p.68.
        • Oatman Mining District
Blair, 1992. Rockhounding Arizona, p.70.
Gemstones producers list, US Bur. Mines; MRD file #10210510.
    • Yuma Co.
      • Castle Dome Mountains
Brauer, O. L. (1964) The Castle Dome Fire Agate Field: Lapidary Journal, v. 18, no. 4, p. 460-462
  • California
    • Riverside Co.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 317.
      • Mule Mts (Palo Verde Mts)
        • Mule Mountains District (Hodges Mountain District)
Perry, L. 1976a The Opal Hill Fire Agate Mine: Gems and Minerals, no. 461, p. 56, 57, 77.
Strong, Mary Frances Berkholz (1964a), Fire agate in the Mule Mountains: Gems & Minerals, No. 319: 16-18, April 1964: 16.; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 317.; Henry, D.J. (1947), Wiley Well district a mecca for the collector: The Mineralogist: 15: 171-176; Strong, Mary Frances Berkholz (1964a), Fire agate in the Mule Mountains: Gems & Minerals, No. 319, April 1964: 16-18; Saul, R.B., Evans, J.R., and Gray, C.H. (1970) Mines and mineral resources of Riverside County. California Division of Mines and Geology County Report 9. Unpublished manuscript: 279; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 348.
  • New Mexico
    • Luna Co.
NMBGMR Open-file Report OF-459
 
Mineral and/or Locality  
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