Ulf Nyberg's Photo Gallery

0GF-L24Vesuvianite (Var: Manganese-bearing Vesuvianite) Ca₁₉(Fe³⁺,Mn²⁺,Mn³⁺)Al₄(Al₆Mg₂)(☐₄)☐[Si₂O₇]₄[(SiO₄)₁₀](O,OH)(OH)₉ , Tephroite Mn²⁺₂SiO₄ , Jacobsite Mn²⁺Fe³⁺₂O₄ , Calcite CaCO₃

Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden

Dimensions: 70 mm x 60 mm x 40 mm

Blood red crystals of manganoan vesuvianite not earlier known from the locality. Matrix consist to largest part of
tephroite, jacobsite and calcite. ID of specimen Pavel Kartashov.
Specimen and photo Ulf Nyberg

GXN-JUHTetrahedrite Subgroup Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S , Rhodonite CaMn₃Mn[Si₅O₁₅]

Sjögruvan, Grythyttan, Hällefors, Örebro County, Sweden

Dimensions: 80 mm x 60 mm x 20 mm

Grey bluish metallic microcystalline tetrahedrite, not earlier found in the Sjögruvan mine.
Matrix consist of manganoan calcite, dolomite, rhodonite, pyrochroite. ID by Dr. Dan Holtstam.
Specimen and photo Ulf Nyberg

T5N-494Carrollite CuCo₂S₄ , Ferriallanite-(Ce) (CaCe)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH) , Cerite-(CeCa) (Ce₇Ca₂)◻Mg(SiO₄)₃(SiO₃OH)₄(OH)₃ , Brochantite Cu₄(SO₄)(OH)₆ , Lanthanite-(Ce) (Ce,La,Nd)₂(CO₃)₃·8H₂O

Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden

Dimensions: 60 mm x 40 mm x 30 mm

Carrollite red arrowed, is silvery colored with a conchoidal surface and are in fact a variant cobaltoan carrollite, here
on a matrix mostly of black ferriallanite-(Ce), light pink Cerite-(Ce),dark green brochantite xx and lanthanite-(Ce) xx.
light lilac. Area of carrollite 3.5 x 6.5 mm.
ID by Pavel Kartashov, photo canon EOS 1100D with retroadapter.
Specimen and photo Ulf Nyberg

KUV-MHPPyrophyllite Al₂Si₄O₁₀(OH)₂

Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden

Largest Crystal Size: 3 mm



Radiating sprays of silky white 3mm crystal groups on a matrix of dolomite-calcite impregnated mica schist.
Photo canon EOS 1100D with retroadapter.
Specimen and photo Ulf Nyberg

WWM-GV8Katoptrite (Mn²⁺,Mg)₁₃(Al,Fe³⁺)₄Sb⁵⁺₂(SiO₄)₂O₂₀

Sjögruvan, Grythyttan, Hällefors, Örebro County, Sweden

Dimensions: 90 mm x 50 mm x 30 mm
Largest Crystal Size: 2.63 mm

Very dark red brown crystals of katoptrite on a matrix of hausmannite, Calcite, Dolomite with minor manganberzeliite.
ID by Dr. Dan Holtstam. Photo canon EOS 1100D with retroadapter.
Specimen and photo Ulf Nyberg

QUG-J05Margarosanite Pb(Ca,Mn²⁺)₂(Si₃O₉)

Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden

Largest Crystal Size: 3 mm

Colorless bladed and elongated crystal with a length of 3 mm. Response bluish white fluorescence in short wave UV-light.
The matrix consist mostly of a manganoan calcite. Photo canon EOS 1100D with retroadapter.
Collection and photo Ulf Nyberg

YAG-0H1Allactite Mn²⁺₇(AsO₄)₂(OH)₈

Sjögruvan, Grythyttan, Hällefors, Örebro County, Sweden

Dimensions: 50 mm x 30 mm x 30 mm

Light pink, transparent 1.8 x 1.4 mm crystal in a cave. The matrix consist of calcite banded with tephroite.
ID by Dr. Dan Holtstam. Photo canon EOS 1100D with retroadapter.
Specimen and photo Ulf Nyberg

View of the mine dump

Sjögruvan, Grythyttan, Hällefors, Örebro County, Sweden

Sjögruvan Mine is situated right on the shore and there where none other space elsewhere for the waste, so all that where dumped in the lake.
Photo Ulf Nyberg 18 June 1999

Långban

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

One my working areas on a dump in Långban.
Photo Ulf Nyberg 26 April 2011

Lågban

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Map of the Långban mine area, with some more information on the Långban mines.
Photo Ulf Nyberg 8 August 2006