Location Found: Franklin and Ogdensburg (Type Locality)
 Year Discovered: 1877
 Formula: ZnMn2O4
 Essential Elements: Manganese, Oxygen, Zinc
 All Elements in Formula: Manganese, Oxygen, Zinc
 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   Hetaerolite

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.597

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.61

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 15, No. 1 - February 1974, pg. 11Research Reports - Hetaerolite (small article)
View IssueV. 9, No. 1 - February 1968, pg. 14The Exclusive Minerals of Franklin/Ogdensburg, N.J. (as of January 1968) by Frank Z. Edwards - Hetaerolite (Short Note)

Hetaerolite crystals, calcite, and minor zincite, from Sterling Hill Mine, NJ
Hetaerolite crystals (black), calcite (white), and minor zincite (brown to reddish brown), from Sterling Hill Mine, NJ. Photo by Robert A. Boymistruk.

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