Location Found: Franklin and Ogdensburg
 Year Discovered: 1884
 Formula: Mn72+(AsO4)2(OH)8
 Essential Elements: Arsenic, Hydrogen, Manganese, Oxygen
 All Elements in Formula: Arsenic, Hydrogen, Manganese, Oxygen
 IMA Status: Approved
 To find out more about this mineral at minDat's website, follow this link   Allactite

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.656

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.40

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 25 No. 1 - Spring 1984, pg. 8Mineral Notes Research Reports, Allactite
View IssueV. 24, No. 1 - Spring 1983, pg. 4Recent Mineral Occurrences at Sterling Hill, Stephen B. Sanford, Allactite
View IssueV. 19, No. 2 - September 1978, pg. 6Recent Mineral Occurrences at Sterling Hill by Stephen Sanford - Allactite (small article)
View IssueV. 15, No. 1 - February 1974, pg. 8Mineral Notes - Allactite/McGovernite (small article)
View IssueV. 10, No. 1 - February 1969, pg. 12Additional Mineral Notes - Allactite (Short Note)

Allactite crystals, fluorite, willemite and minor secondary copper from Sterling Hill Mine, NJ.
Stout allactite crystals in subparallel, slightly radial growth (red), fluorite (white), willemite (pink-tan) and minor secondary copper (green-blue) from Sterling Hill Mine, NJ. Field of view 3/4". From the collection of, and photo by Robert A. Boymistruk.

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