Johannsenite





 Location Found: Franklin (Type Locality)
     
 
 Year Discovered: 1932
     
 Formula: CaMn2+Si2O6
 Essential Elements: Calcium, Manganese, Oxygen, Silicon
 All Elements in Formula: Calcium, Manganese, Oxygen, Silicon
     
 IMA Status: Approved
     
Fluorescent Mineral Properties

 Longwave UV light: Muted dull orange
 Additional Information: Moderately bright orange under blue light, peaking at 445 nm
     
 To find out more about this mineral at minDat's website, follow this link   Johannsenite

     
 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.434

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.63


The Picking Table References
 PT Issue and PageDescription / Comment
V. 58, No. 1 - Spring 2017, pg. 11Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 2, Richard C. Bostwick - Johannsenite
View IssueV. 17, No. 2 - September 1976, pg. 8The Post Palache Minerals - Johannsenite
View IssueV. 9, No. 1 - February 1968, pg. 7Mineralogical Data - Johannsenite/Bustamite
View IssueV. 7, No. 1 - February 1966, pg. 8Johannsenite
View IssueV. 6, No. 1 - February 1965, pg. 9Johannsenite
View IssueV. 6, No. 1 - February 1965, pg. 10Bustamite and Johannsenite
     
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