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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Lazulite from
Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy


06169080017866627512888.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
09639100017272028946902.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
04592920017272028955170.jpg
Lazulite, etc.

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
08490050017272028957756.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
06270450017368442096611.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
09639100017272028946902.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
04592920017272028955170.jpg
Lazulite, etc.

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
09818420017368442097732.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
01758050017272055438073.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
09639100017272028946902.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
04592920017272028955170.jpg
Lazulite, etc.

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
08490050017272028957756.jpg
Lazulite

Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
Locality type:Mountain
Classification
Species:Lazulite
Formula:MgAl2(PO4)2(OH)2
Comments:Nice xls up to 15 mm of a very deep color and transparent.
Habit:pseudo-pyramidal with rombic section
Colour:light blue, blue
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Associated Minerals:
Associates:Chlorite Group
Hematite
Quartz
Rutile
Svanbergite
Associated Minerals Based on Photo Data:
Quartz10
Hematite2
Chlorite Group1
Data
Mineral Data:Click here to view Lazulite data
Locality Data:Click here to view Monte Folgorito, Seravezza, Lucca Province, Tuscany, Italy
Photo GalleryView Gallery (30 photos)
Data Identifiers
Mindat Occurrence Record ID:137331
Long-form Identifier:1:3:137331:8
GUID (UUID V4):0
References
Dini, A. et al. (1997) - La lazulite du mont Folgorito (Alpes Apuanes), Pietrasanta, Lucca, Toscane, Rivista Mineralogica Italiana, 2 171-178.
 
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