Djurleite, a copper sulfide mineral, was first reported from Franklin by Cook (1973). It was found associated with dolomite and hematite in a vein in franklinite-willemite ore. Djurleite was reported from Sterling Hill by Jenkins and Misiur (1994).
[Dunn] has found djurleite on specimens labeled chalcocite; these two grayish-black, opaque, sectile minerals are visually identical and require X-ray techniques for identification. Like chalcocite, djurleite may have a sooty surface coating. Djurleite is far less abundant locally than chalcocite. (Dunn, 1995)

 Location Found: Franklin and Ogdensburg
 Year Discovered: 1962
 Formula: Cu31S16
 Essential Elements: Copper, Sulfur
 All Elements in Formula: Copper, Sulfur
 IMA Status: Approved
 To find out more about this mineral at minDat's website, follow this link   Djurleite

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.532

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.54

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 35, No. 2 - Fall 1994, pg. 21A Complex Base-Metal Assemblage From the Sterling Mine New Jersey - Djurleite
View IssueV. 10, No. 2 - August 1969, pg. 6Mineral Notes - Djurleite (#253 of Verified Franklin Minerals)
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