Haidingerite, a calcium arsenate hydrate mineral, was reported from Sterling Hill by Bayliss and St. J. Warne (1987). It was reported to occur with willemite and magnesian chlorophoenicite [also known as magnesiochlorophoenicite], but no description was given.

 Location Found: Ogdensburg
 Mineral Note: Reported from Sterling Hill, but without supporting data. Further study needed.
 Year Discovered: 1827
 Formula: CaHAsO4 · H2O
 Essential Elements: Arsenic, Calcium, Hydrogen, Oxygen
 All Elements in Formula: Arsenic, Calcium, 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   Haidingerite

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.669

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 30, No, 2 - Fall 1989, pg. 3Notes from the Laboratory & Changes to the List of Species From Franklin and Sterling Hill, Pete J. Dunn, John L. Baum, Haidingerite
View IssueV. 30, No, 2 - Fall 1989, pg. 19Research Reports, Haidingerite Magnesium-Chlorophoenicite
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