Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Gravegliaite from
Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy


09847520017271923461560.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
01770330017271923506838.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
08636500017271923551438.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
07308520017371316879339.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
03700880017827957261958.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
06978100017827957265989.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
00055590017827957278495.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
02019450017371316053930.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
09847520017271923461560.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
01770330017271923506838.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
08636500017271923551438.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
00083360017395525054981.jpg
Gravegliaite

Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
Locality type:Mine
Classification
Species:Gravegliaite
Formula:Mn2+SO3 · 3H2O
Confirmation
Validity:Valid - Type Locality
Data
Mineral Data:Click here to view Gravegliaite data
Locality Data:Click here to view Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:40312
Long-form Identifier:1:3:40312:8
GUID (UUID V4):0
References
415 (354).
Basso, R.; Lucchetti, G.; Palenzona, A. (1991) Gravegliaite, MnSO3 · 3 H2O, a new mineral from Val Graveglia (Northern Apennines, Italy). Zeitschrift für Kristallographie, 197 (1-2). 97-106 doi:10.1524/zkri.1991.197.1-2.97
Pagano, Renato, Marchesini, Marco (2001) The Val Graveglia Manganese District, Liguria, Italy. The Mineralogical Record, 32 (5) 349-415
Biagioni, Cristian; Sejkora, Jiří; Dolníček, Zdeněk (2026) Belmonteite, CaMn 2 (AsO 4 ) 2 (H 2 O) 5  ⋅ 2H 2 O, a new arsenate mineral from the Mn ore deposits of the Graveglia Valley, eastern Liguria, Italy. European Journal of Mineralogy, 38 (4). p.531-543. doi:10.5194/ejm-38-531-2026
 
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