Fluoborite





 Location Found: Franklin and Ogdensburg
     
 
 Year Discovered: 1926
     
 Formula: Mg3(BO3)(F,OH)3
 Essential Elements: Boron, Fluorine, Magnesium, Oxygen
 All Elements in Formula: Boron, Fluorine, Hydrogen, Magnesium, Oxygen
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
Fluorescent Mineral Properties

 Shortwave UV light: Moderately bright cream
     
 To find out more about this mineral at minDat's website, follow this link   Fluoborite

     
 References:
Dunn, Pete J. (1995). Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits. Franklin, NJ.: The Franklin-Ogdensburg Mineralogical Society. p.640

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.56


The Picking Table References
 PT Issue and PageDescription / Comment
V. 57, No. 2 - Fall 2016, pg. 17Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 1, Richard C. Bostwick - Fluoborite
View IssueV. 34, No. 2 - Fall 1993, pg. 15Recent Mineral Finds From The Sterling Mine Ogdensburg, New Jersey - Fluoborite
View IssueV. 33, No. 2 - Fall 1992, pg. 10The Check List of Franklin-Sterling Hill Fluorescent Minerals - Fluoborite (Fluorescent Info)
View IssueV. 27 No. 2 - Fall 1986, pg. 5Minerals of the Franklin Quarry, Philip P. Betancourt, Fluoborite
View IssueV. 18, No. 2 - September 1977, pg. 6Mineral Notes - Fluoborite
View IssueV. 18, No. 2 - September 1977, pg. 12The Fluorescent Minerals of Franklin and Sterling Hill, NJ by Richard C. Bostwick - Fluoborite
View IssueV. 17, No. 1 - March 1976, pg. 8Research Reports - Fluoborite
View IssueV. 15, No. 1 - February 1974, pg. 10Mineral Notes - Fluoborite (small article)
View IssueV. 7, No. 2 - August 1966, pg. 8The Minerals of Sterling Hill 1962-65 by Frank Z. Edwards - Fluoborite (small article)
     
Images

     
Fluoborite grains in calcite / marble, with graphite and pyrite, Sterling Hill MineFluoborite grains in calcite / marble, with graphite and pyrite, Sterling Hill Mine under shortwave UV Light
Fluoborite grains in calcite / marble, with graphite and pyrite from the Sterling Hill Mine, Ogdensburg, NJ. Photo by JVF.
Fluoborite grains in calcite / marble, with graphite and pyrite from the Sterling Hill Mine, Ogdensburg, NJ under shortwave UV light. The fluoborite fluoresces cream-white and the calcite / marble, graphite and pyrite is non-fluorescent. Photo by JVF.







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