Hemimorphite





 Location Found: Franklin and Ogdensburg
     
 
 Year Discovered: 1853
     
 Formula: Zn4Si2O7(OH)2 · H2O
 Essential Elements: Hydrogen, Oxygen, Silicon, Zinc
 All Elements in Formula: Hydrogen, Oxygen, Silicon, Zinc
     
 IMA Status: Approved
     
Fluorescent Mineral Properties

 Shortwave UV light: Moderately bright to weak white and pale yellow, less common green, orange-yellow, blue
 Mid wave UV light: Moderately bright to weak white and pale yellow, less common green, orange-yellow, blue
 Longwave UV light: Moderately bright to weak white and pale yellow, less common green, orange-yellow, blue
 Additional Information: Phosphoresces moderately bright to weak white and pale yellow
     
 To find out more about this mineral at minDat's website, follow this link   Hemimorphite

     
 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.412

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.60


The Picking Table References
 PT Issue and PageDescription / Comment
V. 57, No. 2 - Fall 2016, pg. 20Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 1, Richard C. Bostwick - Hemimorphite
View IssueV. 35, No. 2 - Fall 1994, pg. 21A Complex Base-Metal Assemblage From the Sterling Mine New Jersey - Hemimorphite
View IssueV. 33, No. 2 - Fall 1992, pg. 10The Check List of Franklin-Sterling Hill Fluorescent Minerals - Hemimorphite (Fluorescent Info)
View IssueV. 24 No. 2 - Fall 1983, pg. 14Minerals of the Buckwheat Dolomite Franklin, New Jersey, Hemimorphite (small description)
View IssueV. 18, No. 2 - September 1977, pg. 14The Fluorescent Minerals of Franklin and Sterling Hill, NJ by Richard C. Bostwick - Hemimorphite
View IssueV. 7, No. 2 - August 1966, pg. 10The Minerals of Sterling Hill 1962-65 by Frank Z. Edwards - Hemimorphite
     
Images

     
Hemimorphite, non-fluorescent from Sterling Hill Mine, NJ.
Hemimorphite, non-fluorescent from Sterling Hill Mine, NJ. From the collection of, and photo by Robert A. Boymistruk.


Maggot-ore hemimorphite from Sterling Hill Mine, NJ
Maggot-ore hemimorphite from Sterling Hill Mine, NJ. 3 5/8" x 2. From the collection of, and photo by Robert A. Boymistruk.


Botryoidal habit hemimorphite from Passaic pit, Sterling Hill Mine, NJ
Botryoidal habit hemimorphite from Passaic pit, Sterling Hill Mine, NJ. 3 1/2" × 3 1/4". From the collection of and photo by Ken Reynolds.







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