Hawleyite, a cadmium sulfide mineral, is locally rare. Bright yellow splotches of powdery material, found in 1878 in the Hamburg Mine, later part of the Franklin Mine, and reported as greenockite by Canfield (1889) and Palache (1935), are here found to be mixtures of hawleyite and sphalerite.
Hawleyite was also found by [Dunn] as a yellow powder associated with hemimorphite and sphalerite from Sterling Hill. (Dunn, 1995)

 Location Found: Franklin and Ogdensburg
 Formula: CdS
 Essential Elements: Cadmium, Sulfur
 All Elements in Formula: Cadmium, Sulfur
 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   Hawleyite

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.534

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 22, No. 1 - March 1981, pg. 2Guerinite and Hawleyite from Sterling Hill, Pete J. Dunn, Hawleyite
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