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Corrado Balestra's Photo Gallery

D85-MLAArsenmedaite : Mn2+6As5+Si5O18(OH), Medaite : Mn2+6V5+Si5O18(OH)

Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy

Field of View: 3 mm

Orange, elongated prismatic crystals of arsenmedaite with reddish, subhedral crystals of medaite.
This specimen is part of the holotype and was collected in the ‘80s by Manlio Callandria, a local mineral collector.
In spite of some macroscopic differences between the two species, in general they are not visually recognizable due to the presence of intermediate members.
Photo ID: 848015     Uploaded by: Corrado Balestra   View Count: 85   Approval status: Public galleries    Type: Photo - 2272 x 1704 pixels (3.9 Mpix)

TVU-NPRBassoite : SrV4+3O7·4H2O

Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy

Black microcrystals of bassoite on rhodonite.
Field width 3.0 mm.
Specimen is part of the holotype and is deposited in the collection of the DipTeRis, Genoa University, Italy.
The mineral was first observed by Alessandro Pozzi, a local mineral collector.
Photo prof. R. Cabella, DipTeRis, Genoa University, Italy.
Photo ID: 446755     Uploaded by: Corrado Balestra   View Count: 783   Approval status: Public galleries    Type: Photo - 1772 x 1177 pixels (2.1 Mpix)
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