Corundum





 Location Found: Franklin and Ogdensburg
     
 
     
 Formula: Al2O3
 Essential Elements: Aluminum, Oxygen
 All Elements in Formula: Aluminum, Oxygen
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
Fluorescent Mineral Properties

 Shortwave UV light: Moderately weak red
 Mid wave UV light: Moderately weak red
 Longwave UV light: Moderately bright cherry-red
 Additional Information: Fluoresces weakest at shortwave
     
 To find out more about this mineral at minDat's website, follow this link   Corundum

     
 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.589

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.52


The Picking Table References
 PT Issue and PageDescription / Comment
V. 57, No. 2 - Fall 2016, pg. 15Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 1, Richard C. Bostwick - Corundum
V. 57, No. 1 - Spring 2016, pg. 17Aluminum-Rich Mineral Assemblages at Lime Crest Quarry, Sparta Township, New Jersey, Warren Cummings
View IssueV. 45, No. 1 - Spring 2004, pg. 10The Art of Fluorescent Mineral Photography, With Special Attention to the Minerals of Franklin and Sterling Hill Photographing the More Popular Franklin and Sterling Hill Fluorescent Minerals - Corundum
View IssueV. 33, No. 2 - Fall 1992, pg. 10The Check List of Franklin-Sterling Hill Fluorescent Minerals - Corundum (Fluorescent Info)
View IssueV. 32, No. 1 - Spring 1991, pg. 9An Uncommon Margarite/Corundum Assemblage From Sterling Hill, New Jersey, Pete J. Dunn, Clifford Frondel, Corundum (small description)
View IssueV. 27 No. 2 - Fall 1986, pg. 5Minerals of the Franklin Quarry, Philip P. Betancourt, Corundum
View IssueV. 18, No. 1 - March 1977, pg. 23The Fluorescent Minerals of Franklin and Sterling Hill, NJ by Richard C. Bostwick - Corundum
View IssueV. 13, No. 2 - August 1972, pg. 12The Fluorescent Minerals of Franklin/Ogdensburg Area by Frank Z. Edwards - Corundum (Fluorescent Info)
     
Images

     
Corundum crystals in franklin marble matrix, Franklin Quarry, FranklinCorundum crystals in franklin marble matrix, Franklin Quarry, Franklin under longwave UV Light
Corundum crystals in franklin marble matrix, Franklin Quarry, Franklin, NJ. Photo by JVF.
Corundum crystals in franklin marble matrix, Franklin Quarry, Franklin, NJ under longwave UV light. The corundum fluoresces bright red and the marble is non-fluorescent. Photo by JVF.







All content including, but not limited to, mineral images, maps, graphics, and text on the Franklin-Ogdensburg Mineralogical Society, Inc. (FOMS) website is licensed under a
Creative Commons Attribution-NonCommercial 4.0 International License.
Creative Commons License