Ljusnarsberg, Örebro County, Sweden

Wollastonite, fluorescent orange/yellow with some green under longwave UV light. Longwave fluorescence.

© Simone Conti

Single crystal of danalite, 18x10 mm

© Bertil Otter

Red Danalite on Green Hedenbergite matrix Size: 3 x 2,5 cm Collection and photo: Arliguie M

© Arliguie M

Its crystallization is extraordinary. Partially doubly terminated, the crystal is formed by a prism and a dipyramide on the terminations, one of them incomplete. Faces and edges are very well defined. The locality is also uncommon.Yxsjöberg Mine, Yxsjö, Ljusnarsberg, Västmanland, Sweden.Specimen size: 3 x 1.8 x 2.1 cmWith handwritten label from ...

© Fabre Minerals https://www.fabreminerals.com

Vesuvianite with etched green calcite. Collected by A. Osterlof ~1990. Alan Goldstein specimen (2030) and photo.

© Alan Goldstein

Molybdoscheelite - short-wave display of white crystalline section

© Christopher O'Neill

Munich Show 2011/10/29: Danalite crystal on loan by Swedish Museum of Natural History for the European Treasures exhibition, pictured from below; trigonal pyramid of Genthelvite-series with an edge length of ca. 20 cm

Very nice and shiny yellow quartz crystals. Field of view is approx 15x20 mm. Photographed and in the collection of Daniel Svensson.

© Daniel Svensson

A 2 cm crudely formed crystal. S409-116 Gunnar Farber specimen.

© 2009, JGW

7.2 cm. Black crystals of? in danalite matrix, from the collection of David J. Eicher. Gunnar Färber specimen.

© David J. Eicher

Typical group of chondrodite crystals from Kaveltorpsfältet in a mix of galena and sphalerite (not visible), size 10x20x20 (app), coll and photo AÖ 2013.

© aö

3.3 x 3.2 x 3.0 cm. Chondrodite is an uncommon Mg-Fe silicate found in contact metamorphic rocks and carbonatites. Specimens of any species are rare from this abandoned Cu-Pb-Ag-Zn mine. This interesting combination miniature is highlighted by two beautiful, gemmy cherry-red to fire-orange, sharp chondrodite crystals to 3 mm. What looks to be ...

© Rob Lavinsky & irocks.com

Scheelite (weak gray), Fluorite (yellowish) and dark green Hedenbergite from Yxsjöberg mine. Size appr 90x90x90 mm, coll and photo AÖ 2011.

© aö

Insamlad 30 Maj, 1981. Ex coll no 38. Locality is: Whigströmsgruvan, Kopparberg, Västmanland.

Molybdoscheelite - white crystalline section in garnet with unidentified green mineral.

© Christopher O'Neill

Typical specimen with a broken but lovely colored chondrodite crystal, short but fat hornblende and some galena from Kaveltorp. Size appr 25x30x35 mm, coll and photo AÖ 2013.

© aö

Jeffersonite, zincian manganoan variety of augite. Acquired from Ingemar Johansson.

© Heyninck A

Grayish scheelite crystal in a matrix of brown-yellow fluorite, hedenbergite and some qz from the Yxsjöberg Mine. Size 15x15x20 mm, coll& photo AÖ 2011.

© aö

3.3 x 3.2 x 3.0 cm. Chondrodite is an uncommon Mg-Fe silicate found in contact metamorphic rocks and carbonatites. Specimens of any species are rare from this abandoned Cu-Pb-Ag-Zn mine. This interesting combination miniature is highlighted by two beautiful, gemmy cherry-red to fire-orange, sharp chondrodite crystals to 3 mm. What looks to be ...

© Rob Lavinsky & irocks.com

Cubanite (bleu arrow) with tarnished chalcopyrite (red arrow) from the Kaveltorp mines. Mineral received from Ingemar Johansson.

© Heyninck A

Almandine Size: 1.3x1.7x2cm

Greyish scheelite, purple fluorite and quartz from the Yxsjöberg mine.

© Heyninck A

Greyish-green Diopside crystals with Chalcopyrite and Galena From the mineral collection of Axel R. Andersson, Uppsala 1976 Collected in the 1890's Collection & photo: Conny Larsson

3.4 x 2.5 x 2.4 cm. Mineral specimens are rare from this extinct skarn deposit that produced Cu, Pb, Ag, and Zn. This interesting combination miniature is highlighted by three gemmy golden-yellow, sharp chondrodite crystals to 1.0 cm aesthetically set on the skyline of mounded sphalerite matrix. A fine combination rarity from this well-known ...

© Rob Lavinsky & irocks.com

Green, translucent and gemmy Diopside crystals up to 15 mm, with Chalcopyrite and Galena. Ex. mineral collection of Axel R. Andersson, Uppsala 1976. Old Specimen. Collection & photo: Conny Larsson.

Metallic molybdenite, some fluorite and quartz.

© Heyninck A

Fragment of the Ställdalen meteorite on display at the Fersman Mineralogical Museum, Moscow. FOV is ~14 cm. Photo: Paolo Bosio

massive danalite showing some faces of an xl In Coll. M. Slama Canon EOS 600D with Canon MP-E 65mm f/2.8 1-5x, stacked from 39 Images using Zerene Stacker (Dmap)

© Martin Slama

In coll. M. Slama Canon EOS 600D with Canon MP-E 65mm f/2.8 1-5x, stacked from 14 Images using Zerene Stacker (Dmap)

© Martin Slama

White wollastonite in matrix.Yellow fluoresence with under UV.

© Heyninck A

Blue-white-fluorescing scheelite shown under SW UV light.

© 2022 Harold Moritz

3.4 x 2.5 x 2.4 cm. Mineral specimens are rare from this extinct skarn deposit that produced Cu, Pb, Ag, and Zn. This interesting combination miniature is highlighted by three gemmy golden-yellow, sharp chondrodite crystals to 1.0 cm aesthetically set on the skyline of mounded sphalerite matrix. A fine combination rarity from this well-known ...

© Rob Lavinsky & irocks.com

Brown garnet with greenish diopside, quartz and a little scheelite.

© Heyninck A

Scheelite with quartz and almandine.Received from Ingemar Johansson in 1991.

© Heyninck A

Tremolite with magnetite on top.

© Heyninck A

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (light grey) showing tiny inclusions of native bismuth (Bi - bright creamy), and electrum (Au - bright yellowish), in association with chalcopyrite (yellow) and pyrrhotite (crème-brown), filling interstices in cracky aggregates of sphalerite (medium ...

© Günter Grundmann, Detmold

Sharp crystals to 4 cm of hedenbergite in chalcopyrite. Said to be from "Grängesberg" but is probably from the Kaveltorp mine at Kopparberg, Ljusnarsberg of the kind described by Gustav Flink as "type 2". He considered this locality to be the second best for hedenbergite crystals in Sweden after the Nordmark-Odalsfield mines near Filipstad.

© Knut Eldjarn

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Cross section through fine-grained Zn-Pb-Cu ore showing granular cracky aggregates of sphalerite (spotty medium brownish grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (light grey), ...

© Günter Grundmann, Detmold.

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), chalcopyrite ...

© Günter Grundmann, Detmold

Little pieces of scheelite in matrix. Unlike usual, the scheelite fluoresces yellow under both shortwave and midwave, probably due to a very high molybdenum content. Maybe powellite? Shortwave fluorescence.

© Simone Conti

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), cubanite lamellae (Cbn - light crème-brown), chalcopyrite (yellow) and ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

Metallic molybdenite in olive-green albite-anorthite.

© 2024 Harold Moritz

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (isotropic), with tiny inclusions of native bismuth (Bi – weak anisotropy), and electrum (isotropic), in association with chalcopyrite (weak olive brown to bluish anisotropy) and pyrrhotite (dark brown to bluish grey anisotropy), filling interstices in ...

© Günter Grundmann, Detmold

Dark red Danalite crystal fragments in unidentified matrix Acquired from Francis Coune at the Interminéral show in Liège, Belgium on 5 November 2022

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (light grey) showing tiny inclusions of native bismuth (Bi - bright creamy), in association with chalcopyrite (yellow) and pyrrhotite (crème-brown), filling interstices in cracky aggregates of sphalerite (medium grey), partially with extremely ...

© Günter Grundmann, Detmold

Little pieces of scheelite in a grossular matrix. The scheelite fluoresces the typical bright blue under shortwave UV light, and yellow under midwave, probably due to a molybdenum content. Shortwave fluorescence.

© Simone Conti

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (light grey) showing tiny inclusions of native bismuth (Bi - bright creamy), in association with chalcopyrite (yellow) and pyrrhotite (crème-brown), filling interstices in cracky aggregates of sphalerite (medium grey), partially with extremely ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white) and pyrrhotite (crème-brown), in association with various silicates ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Partially curved crystals of mica (almost black), in association with galena (off white), sphalerite (medium grey), pyrrhotite (crème-brown) and minor chalcopyrite (yellow). Vertically reflected, plane polarized light, digital image in air. Please compare the corresponding ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (light grey) showing tiny inclusions of native bismuth (Bi - bright creamy), in association with chalcopyrite (yellow) and pyrrhotite (crème-brown), filling interstices in cracky aggregates of sphalerite (medium grey), partially with extremely ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), ...

© Günter Grundmann, Detmold

Deep reddish-brown massive danalite, possibly with pale helvite and hedenbergite. Old material, purchased from Richard Barstow in 1977.

© Andrew Hodgson

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (light grey) showing tiny inclusions of native bismuth (Bi - bright creamy), in association with chalcopyrite (yellow) and pyrrhotite (crème-brown), filling interstices in cracky aggregates of sphalerite (medium grey), partially with extremely ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and cracky pyrrhotite (crème-brown). Vertically ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregate of galena (light bluish grey) showing tiny inclusions of native bismuth (Bi - bright creamy), in association with pyrrhotite (crème-brown) and sphalerite (medium grey). Vertically reflected, plane polarized light, digital image in air. Please compare the ...

© Günter Grundmann, Detmold

Deep red, tetrahedral danalite crystal in quartz.

© 2023 Harold Moritz

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of sphalerite (medium grey), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (off white), chalcopyrite (yellow) and pyrrhotite (crème-brown), in association with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (isotropic), with tiny inclusions of native bismuth (Bi – weak anisotropy), in association with chalcopyrite (weak olive brown to bluish anisotropy) and pyrrhotite (dark brown to bluish grey anisotropy), filling interstices in cracky aggregates of ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (isotropic), with tiny inclusions of native bismuth (Bi – weak anisotropy), in association with chalcopyrite (weak olive brown to bluish anisotropy) and pyrrhotite (dark brown to bluish grey anisotropy), filling interstices in cracky aggregates of ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic) and ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregate of galena (isotropic) showing tiny inclusions of native bismuth (Bi - weak anisotropy), in association with pyrrhotite (dark brown to bluish grey anisotropy) and sphalerite (isotropic). Vertically reflected, plane polarized light, digital image in air, with ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Partially curved crystals of mica (various dispersed light internal reflections), in association with galena (isotropic), sphalerite (isotropic, with dark brown-red dispersed light internal reflections), pyrrhotite (dark brown to bluish grey anisotropy) and minor chalcopyrite (weak ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (isotropic), with tiny inclusions of native bismuth (Bi – weak anisotropy), in association with chalcopyrite (weak olive brown to bluish anisotropy) and pyrrhotite (dark brown to bluish grey anisotropy), filling interstices in cracky aggregates of ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular cracky aggregates of iron-rich sphalerite (isotropic, with dark brown-red dispersed light internal reflections), partially with extremely fine-grained, crystallographic oriented impregnation of chalcopyrite (chalcopyrite disease), are cemented by galena (isotropic), ...

© Günter Grundmann, Detmold

The microstructure of base metal mineralization from Kaveltorp. Granular aggregates of galena (isotropic), with tiny inclusions of native bismuth (Bi – weak anisotropy), in association with chalcopyrite (weak olive brown to bluish anisotropy) and pyrrhotite (dark brown to bluish grey anisotropy), filling interstices in cracky aggregates of ...

© Günter Grundmann, Detmold