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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Viitaniemiite from
Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland


00345520017272741443611.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
08093540017272000709839.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
05098000017272000728755.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
09868630017362823952768.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
00913830017362824008557.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
00855440017362824016814.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
07010080017362496236441.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
09868630017362823952768.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
00345520017272741443611.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
08093540017272000709839.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
05098000017272000728755.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
06635490017362824027679.jpg
Viitaniemiite, etc.

Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
Locality type:Pegmatite
Classification
Species:Viitaniemiite
Formula:Na(Ca,Mn2+)Al(PO4)(F,OH)3
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Eosphorite
Morinite
Associated Minerals Based on Photo Data:
Väyrynenite4
Eosphorite3
Montebrasite2
Morinite1
Amblygonite1
Amblygonite-Montebrasite Series1
Data
Mineral Data:Click here to view Viitaniemiite data
Locality Data:Click here to view Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:54743
Long-form Identifier:1:3:54743:1
GUID (UUID V4):0
References
Lahti, Seppo I. (1981) On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin de la Commission Géologique de Finlande Vol. 314. Geological Survey of Finland
 
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