Location Found: Franklin and Ogdensburg
 Formula: Co3(AsO4)2 · 8H2O
 Essential Elements: Arsenic, Cobalt, Hydrogen, Oxygen
 All Elements in Formula: Arsenic, Cobalt, Hydrogen, Oxygen
 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   Erythrite

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.667

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.55

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 34, No. 2 - Fall 1993, pg. 14Recent Mineral Finds From The Sterling Mine Ogdensburg, New Jersey - Erythrite
View IssueV. 19, No. 2 - September 1978, pg. 7Recent Mineral Occurrences at Sterling Hill by Stephen Sanford - Erythrite (small article)
View IssueV. 15, No. 1 - February 1974, pg. 9Mineral Notes - Erythrite

Erythrite, calcite and franklinite from Franklin, NJ
Erythrite (violet-red), calcite (white to tan) and franklinite (black) from Franklin, NJ. Field of view 1" (2.6 cm). From the collection of, and photo by Robert A. Boymistruk.

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