Malachite after Azurite

Specimen ID: Q2G-YLG

Title
Malachite after Azurite
Locality
As recorded:
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA
Dimensions
77mm x 52mm x 49mm
Description
Very 3-dimensional growth of Malachite pseudomorphing equidimensional crystals of Azurite, with very well defined faces and edges, intense color, on matrix. Before the Azurite started altering to Malachite a thin dark coating, probably Cuprite, formed on the faces of the crystals, as suggested by the mineralogy of the locality and some of the crystalline forms, apparently octahedral, present in the matrix. This great quality piece comes from the collection of Rock H. Currier (No. 4667) whose label we will send to the buyer. The specimen is from the Ignacio Gaspar Sintes collection, whose label we will send to the buyer. The specimen has been reviewed, photographed and published in the Russian magazine ?Mineral Observer? on page 64 in the volume 25, number 2 New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA Specimen size: 7.7 × 5.2 × 4.9 cm = 3.03” × 2.05” × 1.93” Main crystal size: 3.2 × 2.5 cm = 1.26” × 0.98”
Previous data
Mineral(s)
Malachite, AzuriteNone listed
Name withheld

Events

Photo added to mindat.org

Reference: TF48AL1 Very 3-dimensional growth of Malachite pseudomorphing equidimensional crystals of Azurite, with very well defined faces and edges, intense color, on matrix. Before the Azurite started altering to Malachite a thin dark coating, probably Cuprite, formed on the faces of the crystals, as suggested by the mineralogy of the locality and some of the crystalline forms, apparently octahedral, present in the matrix. This great quality piece comes from the collection of Rock H. Currier (No. 4667) whose label we will send to the buyer. The specimen is from the Ignacio Gaspar Sintes collection, whose label we will send to the buyer. The specimen has been reviewed, photographed and published in the Russian magazine ‘Mineral Observer’ on page 64 in the volume 25, number 2 New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA Specimen size: 7.7 × 5.2 × 4.9 cm = 3.03” × 2.05” × 1.93” Main crystal size: 3.2 × 2.5 cm = 1.26” × 0.98”
Jordi Fabre - 2nd December 2021
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