Mineral description : Väyrynenite

Väyrynenite from Viitaniemi, Finland.

Mineral class Phosphates : Unclassified phosphates, arsenates and vanadates (Strunz VII/X).

Chemical formula Mn₂Be(PO₄)(OH,F)

Crystal system Monoclinic

Habitus Crystals prismatic. Often massive or grainy aggregates.

Cleavage Good.

Hardness 5

Density 3.18 - 3.21

Color Pink to red.

Streak

Luster Vitreous, transparent to translucent.

Description

Occurance As a secondary phosphate formed in pegmatites.

Associates Apatite, beryl.

Notes Type locality : Viitaniemi, Erajärvi, Orivesi, Finland (1954).
Named after the Finnish geologist Heikki Väyrysen(1888-1956).

Localities A rare mineral in scandinavia.
Sweden :

Arlanda, Sigtuna, Uppland.
Norrö, Haninge, Uppland.
Norway : No known locality.
Finland :

Viitaniemi, Orivesi. As pink aggregates in cavities in feltspar.

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Last changed : 2001-02-09

Mineral class	Phosphates : Unclassified phosphates, arsenates and vanadates (Strunz VII/X).
Chemical formula	Mn₂Be(PO₄)(OH,F)
Crystal system	Monoclinic
Habitus	Crystals prismatic. Often massive or grainy aggregates.
Cleavage	Good.
Hardness	5
Density	3.18 - 3.21
Color	Pink to red.
Streak
Luster	Vitreous, transparent to translucent.
Description
Occurance	As a secondary phosphate formed in pegmatites.
Associates	Apatite, beryl.
Notes	Type locality : Viitaniemi, Erajärvi, Orivesi, Finland (1954). Named after the Finnish geologist Heikki Väyrysen(1888-1956).
Localities	A rare mineral in scandinavia. Sweden : Arlanda, Sigtuna, Uppland. Norrö, Haninge, Uppland. Norway : No known locality. Finland : Viitaniemi, Orivesi. As pink aggregates in cavities in feltspar.