Atacamite



Atacamite, a copper chloride hydroxide mineral, was found by [Dunn] on one specimen in the Harvard Mineralogical Museum and was verified solely by X-ray diffraction. It occurs as bright green microscopic crystals associated with radial, prismatic ganophyllite, rhodonite, and marsturite. Atacamite is exceedingly rare at Franklin and has not been reported from Sterling Hill. (Dunn, 1995)

 Location Found: Franklin
     
 
 Year Discovered: 1801
     
 Formula: Cu2(OH)3Cl
 Essential Elements: Chlorine, Copper, Hydrogen, Oxygen
 All Elements in Formula: Chlorine, Copper, 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   Atacamite

     
 References:
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.607


     
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