Epidote





 Location Found: Franklin and Ogdensburg
     
 
 Year Discovered: 1801
     
 Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
 Essential Elements: Aluminum, Calcium, Hydrogen, Iron, Oxygen, Silicon
 All Elements in Formula: Aluminum, Calcium, Hydrogen, Iron, Oxygen, Silicon
     
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
     
     
 To find out more about this mineral at minDat's website, follow this link   Epidote

     
 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.404

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.54


The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 35, No. 1 - Spring 1994, pg. 21Geology and Mineralogy of a Veinlet Assemblage Associated With Wollastonite-Bearing Rocks, Sterling Mine, Ogdensburg, New Jersey, Robert E. Jenkins II - Epidote
View IssueV. 30, No. 1 - Spring 1989, pg. 8The Epidote-Pyroxene-Fluorapophyllite Assemblage in the Franklin Mine at Franklin, New Jersey, Philip P. Betancourt, Epidote (small description)
     
Images

     
Epidote crystals  from Sterling Hill. Actual image width 2 inches
Epidote crystals (green) from the Sterling Hill Mine, Ogdensburg, NJ. Image width 2" (51 mm). Photo by WP.


Epidote and salmon calcite from the Mill Site, Franklin, NJ. Photo by WP.
Epidote (green) and salmon calcite from the Mill Site dump, Franklin, NJ. 3 3/4" x 3 ". Photo by WP.







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