Linarite, a lead copper sulfate hydroxide mineral, was first reported from Sterling Hill by Cook (1973) and is not known from Franklin. It occurs as bright-blue microcrystals associated with devilline, brochantite, and gypsum. It is differentiated from azurite in part by a lack of effervescence in HCI. It has been verified by [Dunn] on a number of Sterling Hill specimens, in association with brochantite and other species and likely formed by the alteration of galena and chalcocite or of galena and chalcopyrite. (Dunn, 1995)

 Location Found: Ogdensburg
 Year Discovered: 1822
 Formula: PbCu(SO4)(OH)2
 Essential Elements: Copper, Hydrogen, Lead, Oxygen, Sulfur
 All Elements in Formula: Copper, Hydrogen, Lead, Oxygen, 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   Linarite

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.636

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.65

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 13, No. 1 - February 1972, pg. 7Franklin Mineral Notes - Brochantite/Devilite/Linarite (small article)
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