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Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru

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Roughly 200 km south of Lima, 40 km east of Pisco. Producer of "blue andean opal" since about 1993. Ten tons mined every 2 or 3 months (as of 2003), with only 1 to 2 kg of that being gem quality; the rest is used for carvings in Peru and China.
In 1998 produced an abundant find of beautiful transparent gypsum crystals with atacamite inclusions, at first wrongly marketed as "brochantite inclusions in gypsum".

Refs.:
- Gems and Gemology, 39:332 (2003)
- Mineralien Welt, 11(5):31 (2000) (in German).





Mineral List:
  		•  Atacamite
    Cu
     
    2
    		[(OH)
     
    3
    		|Cl]
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © JSS
  		•  Brochantite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
  		•  Calcite
    CaCO
     
    3
    Reference: []
  		•  'Chalcedony'
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
  		•  Chrysocolla
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © R. Galcerán
  		•  Covellite
    CuS
    Reference: [Excalibur Mineral Company specimen]
  		•  Cuprite
    var: Chalcotrichite
    Cu
     
    2
    		O
    Reference: []
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © Rob Lavinsky
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © A. Z. Savit
  		•  Opal
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: []
  		•  Paratacamite
    Cu
     
    3
    		(Cu,Zn)[(OH)
     
    3
    		|Cl]
     
    2
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © Rob Lavinsky
  		•  Quartz
    SiO
     
    2
    Reference: [Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.]
    Site Photo
    Lily Mine (Lilly Mine), Pisco Umay, Ica Department, Peru
    © Rob Lavinsky


    12 entries listed. 9 valid minerals. 1 erroneous literature entry.

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