Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland

Field of view: 2.1cm Ex. R. Feigl collection

© Marko Burkhardt

A 2 cm aggregate of väyrynenite in amblygonite from the Viitaniemi pegmatite in Finland.

© Knut Eldjarn

Blue topaz from Viitaniemi pegmatite.

A 10 x 7 cm specimen with lithophillite rimmed by green alluaudite and a small area of brown sicklerite at the top from the Viitaniemi pegmatite in Finland. Pictured in "Litofilen" No 1, 2009 p. 20, Fig. 18.

© Knut Eldjarn

Rosy morinite with lightly smoky quartz and tan microcline.

© 2024 Harold Moritz

Topaz crystal.Specimen size 8x5,5cm. Photo and collection Jorge M. Alves

© Jorge Moreira Alves

Pink morinite on backlight.

Triplite of the brighter color ("type II") variety from Viitaniemi. Self-collected 2012.

© Joel Dyer 2013

pink väyrynenite xls In Coll. M. Slama, ex Coll. M. Murashko Canon EOS 600D with Canon MP-E 65mm f/2.8 1-5x, stacked from 29 Images using Zerene Stacker (Dmap)

© Martin Slama

A 7 x 4 cm aggregate of pink väyrynenite crystals with a large off-white crystal of montebrasite and quartz from the Viitaniemi pegmatite in Finland.

© Knut Eldjarn

A specimen with pink morinite on montebrasite from the Viitaniemi pegmatite in Finland.

© Knut Eldjarn

Massive light brownish lithiophilite. Picture size 8 mm. Photographer and collection Thomas Witzke.

© Thomas Witzke and Abraxas-Verlag

Beryllonite and hurlbutite in the same specimen, exchanged with F. Sandström (-79). The beryllonite (blue arrow, area ~8x8 mm) show typical cross-cleaveges, hurlbutite (red arrow) the different brown shades depend on material thickness. Cleavelandite under the arrows (upper right) and the more brownish 5 mm in bottom. Specimen ~45x45x50 mm, A. ...

© A. Österlöf

White spherulitic agregates of strontian crandallite (yellow arrowed) on boundary of large grey montebrasite monograin and pink coarse-grained agregate of morinite. Composition of the crandallite is (Ca0.59Sr0.39Ba0.03)1.01Al3[PO4]2(OH)5*H20. Specimen size is 4.5x3x2 cm. Collected by Ilkka Mikkola before 2008. Pavel M. Kartashov collection and ...

© Pavel M. Kartashov collection & photo

8x8 cm specimen of light grayish brown hurlbutite, with minor muscovite and montebrasite.

© Bertil Otter

Size of crystal 2x2 cm.

© Bertil Otter

White Montebrasite with yellow Muscovite (var Gilbertite) Size: 5 x 4 cm Collection and photo: Arliguie M

© Arliguie M

Group of crystals in schist. Field of veiw 2cm across. Photographed by, and in the collection of, Karl Volkman

© Karl Volkman

A 9 x 10 cm specimen with brown Hurlbutite from the Viitaniemi pegmatite, Eräjärvi, Finland. Specimen and photo: Knut Eldjarn.

© Knut Eldjarn

Pink väyrynenite. Picture size 5 mm. Photographer and collection Thomas Witzke.

© Thomas Witzke and Abraxas-Verlag

A 2.5 cm example of crystalline montebrasite (labeled as amblygonite). S011-13 Excalibur Mineral Company specimen.

© 2010, JGW

Rich pale brownish masses of hurlbutite are frozen within this massive quartz matrix. Very good example for the species. Previous label from the collection of Jack Parnau. Size: 4.1 x 5.2 x 4.9 cm.

© Dan Weinrich Minerals

8 mm thucholite nested in albite on smoky quartz. This was symmetric lens shaped nodule before it broke. Radioactive with fluorescent halo on short wave UV.

Greenish tiny grains of alluaudite covering and beeing surrounded by flesh-coloured massive triplite. The small cavity close to the photo center is 1 mm wide. Specimen obtained at Tisnov show, May 2008.

© Łukasz Kruszewski 2007

2 mm spray of colourless to beige-coloured viitaniemiite with vitreous, pink morinite and amblygonite. From the type locality.

© Bertil Otter

Coarse-grained aggregate of pink Mn-bearing (0.32 % MnO) Morinite within greenish-grey Montebrasite monograin. Composition of the morinite is Na0.99(Ca1.92Mn0.02)1.94Al2.08[P1.98O8](F4.61OH0.40)5.01*2H2O. It is interesting, that this morinite has dichroism and change its colour in dependence of lighting type. Specimen size is 3x2 cm. Collected by ...

© Pavel M. Kartashov collection & photo

Pollucite (massive). Collected by A. Osterlof 5/20/77. Alan Goldstein specimen (2028) and photo.

© Alan Goldstein

Red, translucent väyrynenite. Specimen size 3x2.5 cm.

© Bertil Otter

8.4 x 6.5 x 5.5 cm. This is (for Finland) a SUPERB, HUGE and sharp crystal of topaz. It has textbook form, and the typical light blue color and slight translucence for this locality. There are a few rough spots, but the condition would be considered very fine for this locality, and in context of the size of the crystal. This piece should not be ...

© Rob Lavinsky & irocks.com

Black tantalite-(Mn) and slightly pinkish montebrasite in white albite and green muscovite matrix. Size of tantalite is 40 x 32 x 13 mm. There was smaller crystal intersecting the main one in its down left corner, but it was impossible to save in trimming. Possible cheralite in one corner of tantalite. There is also thucholite surrounded by halo ...

A 5 mm crystal of Wodginite on matrix from Viitaniemi, Eräjärvi, Finland, Specimen and photo: Knut Eldjarn.

© Knut Eldjarn

Green Elbaite in Cleavelandite and Quartz. Specimen size: 7,5x7cm. Crystal size: 35mm. Self colected 1999. Photo and Collection; Jorge M. Alves.

© Jorge Moreira Alves

3.4 x 2.5 x 2.0 cm

© Maggie Wilson

Flesh-coloured massive triplite covered by greenish alluaudite and surrounded by biotite blades. The creamy/beige coloured mineral and a black one at triplite/biotite border ain't indetified yet. The creamy/beige aggregate in the upper part of the photo is 3 mm wide. Specimen obtained at Tisnov show, May 2008.

© Łukasz Kruszewski 2007

A 1 cm crystal of columbite-(Fe) from Viitaniemi, Eräjärvi, Finland. Specimen and photo: Knut Eldjarn.

© Knut Eldjarn

A 2 cm aggregate of Väyrynenite crystals from the type locality at Viitaniemi, Eräjärvi, Finland. Specimen and photo: Knut Eldjarn.

© Knut Eldjarn

Fluorapatite-Mn, in purplish crystals, with fluorite and quartz. Collected by A. Österlöf 5/20/77. Alan Goldstein specimen (#8170) and photo.

© Alan Goldstein

Green flattened tourmaline im muscovite.

Pinkish-orange crystalline lithiophilite. Collected by A. Österlöf May 1974. Alan Goldstein specimen (#8172) and photo. FOV = 2 cm

© Alan Goldstein

Väyrynenite in part as crystals embedded in quarz from the type locality at Viitaniemi, Eräjärvi, Finland. Field of view: 6 cm. Specimen and photo: Knut Eldjarn.

© Knut Eldjarn

SEM image of fragment surface of Manganotantalite crystal. The most bright in BSE octahedron of Fluornatromicrolite overgrow less bright Manganocolumbite surface. Dark minute prismatic crystals are high-hafnian Zircon (up to 20 mas.% HfO2. The darkmost particles are Kaolinite. Composition of the Fluornatromicrolite is VERY unusual - it is ...

© Pavel M. Kartashov collection & photo

Brown hurlbutite in albite. Collected 2011.

Blue Topaz in Qwartz. Crystals up to 35mm. specimen size 5x5x4cm. Self colected 1994. Photo and collection Jorge M. Alves

© Jorge Moreira Alves

10x15mm

© JEFS

FOV 10x20mm.

© Vitezslav Snasel

Red, translucent väyrynenite Field of view: 5mm Photo and collection of Martin Slama

© Martin Slama

Green Elbaite with Microcline(White) in Quartz. Specimen size 7x5cm. Photo and Collection; Jorge M. Alves.

© Jorge Moreira Alves

Another slightly bigger apatite crystal in a quartz and kaolin filled cavity-Viitaniemi, Finland. AÖ specimen and photo.

© A. Österlöf 2008

Tabular 6 mm zircon. Pictured from the good side, opposite being broken. Field collected.

© Jyrki Autio

Blue fluorapatite, colorless topaz and green tourmaline. FOV 30 x 40 mm. Collected 2011.

Flesh-coloured massive triplite. Such triplite aggregates are surrounded by yet unidetified massive black mineral and then by aggregated biotite blades and sit in a huge microcline crystal(s). The colourless segregation (likely of quartz) in the NE part of the photo is max. 1.9 mm wide. Specimen obtained at Tisnov show, May 2008.

© Łukasz Kruszewski 2007

SEM image of platy crystals of Fairfieldite overgrown by more bright in BSE spherulites of Phosphosiderite. Microscopically these minerals are orange and cornflower-blue. Collected by Ilkka Mikkola before 2008. Pavel M. Kartashov collection and photo.

© Pavel M. Kartashov collection & photo

Black Columbite-(Mn) crystal on unidentified matrix Acquired from Erik Huigen

Topaz on Quartz. Specimen size 7x5cm. Topaz crystal 25mm. Photo and collection Jorge M. Alves

© Jorge Moreira Alves

Topaz crystal. Specimen size 2,5x1,5cm. Self colected 1994 Photo and collection Jorge M. Alves

© Jorge Moreira Alves

Smal Topaz crystals up to 15mm on Quartz. Specimen size 5x4cm. Self colected 1994. Photo and collection Jorge M. Alves

© Jorge Moreira Alves

A number of small blue Apatite crystals with cleavelandite from the wellknown Viitaniemi pegmatite, Finland. AÖ specimen and photo.

© A. Österlöf 2008

Pale blue topaz crystal in matrix of smoky quartz and albite and a single crystal. Collected by A. Österlöf, 5/24/74. Alan Goldstein specimens (2036 & 7) and photo.

© Alan Goldstein

Zircon cystal group with small thucholite "spherule", in a cleavelandite matrix. This sample has green fluorescence, due to uranyl ion remains. There is also some muscovite or lepidolite(?) around the crystal group. Self-collected 2012.

© Joel Dyer 2013

FOV 10x20mm.

© Vitezslav Snasel

White montebrasite in quartz. Size 8 x 8 x 6 cm. Field collected.

© Jyrki Autio

Black thucholite nodules or spheres in white cleavelandite. FOV 4cm. The sample displays some green fluorescence due to uranyl ions. Self-collected 2011.

© Joel Dyer 2013

FOV 10x20mm.

© Vitezslav Snasel

Specimen size 5x3cm Beryllonite = Massive, white aggregate in centre of the photo. [The beryllonite are showing typically cleavages in 2 directions.] Hurlbutite= brown massive aggraegate at bottom.

Blue vivianite and orange hureaulite. FOV is 20 mm.

Cassiterite crystals in cleavelandite. Self-collected 2012. This sample had green fluorescence before treatment in 10% HCL.

© Joel Dyer 2013

Dark reddish brown triplite with lighter colored triphylite exsolution layers.

SEM image. Brightmost in BSE tabular crystals and medium-bright films of Herzenbergite within and over massive, more dark in BSE, conchoidal Cassiterite. Collected by Ilkka Mikkola in April 2015. Pavel M. Kartashov analythical data, collection and photo.

© Pavel M. Kartashov photo

A complex jumble of minerals from this unusual pegmatite features bright pink väyrynenite, beige herderite, glassy quartz, and white amblygonite, spanning 4.2 cm, from the collection of David J. Eicher.

© David J. Eicher

Parallel growth beryllonite crystals 23 x 13 mm area show partly the typical stepped growth faces, in the brown 70 x 30 mm hurlbutite matrix, surrounded by quartz. Specimen and photo Ulf Nyberg

SEM image of fragment surface of Manganotantalite crystal. Crust of short-prismatic high-hafnian Zircon (with up to 21 mas.% HfO2 contents) with "hyacinth morphology' of its crystals. Collected by Ilkka Mikkola. Pavel M. Kartashov analytical data and photo.

© Pavel M. Kartashov collection & photo

A half of an altered crystal. Size 30 x 25 x 20 mm.

Tantalite-(Mn)in white albite and green muscovite. Found from larger quarry dump may 2009. Picture and specimen Jyrki Autio.

© Jyrki Autio

Prismatic 4 mm väyrynenite in matrix.

Dark brown 3 mm zircon.