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Dion Glastra's Photo Gallery

5CN-WLVLondonite-Rhodizite Series

Multiple photos available
Antsongombato gem mine, Antsentsindrano, Anosiarivo Manapa, Betafo, Vakinankaratra, Madagascar

Dimensions: 41 mm x 33 mm x 39 mm

Good specimen of a very well-defined, pale greenish-yellow crystal of Londonite-Rhodizite on Rubellite-rich matrix. Labelled as Rhodizite, but no chemical analysis has taken place and since both Londonite and Rhodizite do occur on locality, this should be called Londonite-Rhodizite series. Not visible on the picture are several smaller, less well-formed Rhodzite crystals. A very nice specimen from Antsongombato, Betafo, Antananarivo, Madagascar!

Specimen was originally sold by Spirifer Minerals and came to me by Remco Vinken (Netherlands) in 2015.

Specimen is in my personal collection.
Copyright: © DGM collection      Photo ID: 696595     Uploaded by: Dion Glastra   View Count: 130   Approval status: Public galleries    Type: Photo - 768 x 1024 pixels (0.8 Mpix)

NCT-YKCSphalerite (Var: Schalenblende)

Schmalgraf Mine, Kelmis, Plombières-Vieille Montagne-Moresnet (Plombières-Altenberg-Moresnet) mining district, Verviers, Liège, Wallonia, Belgium

Dimensions: 46 mm x 32 mm x 27 mm

Small chunk of Schalenblende, collected in 2011 at the dumps of the former Schmalgraf Mine near Kelmis, Plombières-Vielle Montagne, Liège Province, Belgium. It is still possible to find Schalenblende (and other zinc minerals) at and around the dumps of this mine.

Specimen is hand-polished to show the nice banded structures in the specimen. I have several other Schalenblende specimens from these dumps.

Specimen is in my personal collection.
Copyright: © DGM collection      Photo ID: 696408     Uploaded by: Dion Glastra   View Count: 88   Approval status: Public galleries    Type: Photo - 3264 x 2448 pixels (8.0 Mpix)

Q0U-H82Fluorapatite, Siderite, Arsenopyrite

Multiple photos available
Panasqueira Mines, Covilhã, Castelo Branco, Portugal

Dimensions: 85 mm x 77 mm x 36 mm
Largest Crystal Size: 11 mm

Nice cluster of green Panasqueira Fluorapatite crystals on green, unidentified matrix covered and partly overgrown by Siderite crystals. On the bottom side, some Arsenopyrite fragments can be observed.

This specimen was bought in 2014 in a mineral shop in Lisbon, Portugal.

Specimen is in my personal collection.
Copyright: © DGM collection      Photo ID: 696000     Uploaded by: Dion Glastra   View Count: 109   Approval status: Public galleries    Type: Photo - 3264 x 2448 pixels (8.0 Mpix)

QQP-02FPrecious Opal (Var: Boulder Opal)

Yowah opal field, Paroo Shire, Queensland, Australia

Dimensions: 3.3 cm x 2.4 cm x 1.2 cm

Classic specimen of Boulder Opal from Yowah Opal Field, Paroo Shire, Queensland, Australia. Multicolorness is well visible. This is a rough specimen.

Specimen dimensions: 3.3 x 2.4 x 1.2 cm

Specimen is in my personal collection.
Bought at a mineral shop (2008?)
Copyright: © DGM collection      Photo ID: 459121     Uploaded by: Dion Glastra   View Count: 231   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

771-H56Cuprite, Chrysocolla

Multiple photos available
Mashamba West Mine, Kolwezi mining district, Lualaba, DR Congo

Dimensions: 5.2 cm x 4 cm x 2.9 cm
Largest Crystal Size: 7 mm

Not a very good specimen with Cuprite crystals embedded in Chysocolla-covered matrix. However, you can see the transparency of the larger Cuprites. Crystals are lustrous. There are some bright green spots on this specimen, I think that they are Malachite, but they are not identified. From Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of Congo.

Specimen is in my personal collection.
Purchased from De Oude Aarde, Giethoorn, Netherlands (????)

Copyright: © DGM photo's      Photo ID: 458797     Uploaded by: Dion Glastra   View Count: 125   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

V2U-4N6Copper, Cuprite, Malachite

Andrássy I. Mine, Rudabánya, Rudabányai Mts, Borsod-Abaúj-Zemplén County, Hungary

Dimensions: 2.6 cm x 1.7 cm x 0.5 cm

Beautiful copper 'tree' with Malachite crusts and some minor Cuprite crystals. There are not so many samples like this. From Andrássy I, Rudabánya, Borsod-Abaúj-Zemplén, Hungary.

Specimen dimensions: 2.6 x 1.7 x 0.5 cm

Specimen is in my personal collection.
Purchased at a mineral show in Groningen, Netherlands (April 2012)
Copyright: © DGM collection      Photo ID: 458534     Uploaded by: Dion Glastra   View Count: 124   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

DFD-FRQCornetite

Multiple photos available
L'Etoile du Congo Mine, Lubumbashi, Haut-Katanga, DR Congo

Dimensions: 16.1 cm x 7 cm x 3.4 cm
Largest Crystal Size: 3 mm

This is really a HUGE specimen of Cornetite from the only locality Cornetite is known as good specimens. Crystals are embedded in matrix, as usual. Specimen is from Kalukuluku Mine, Lubumbashi, Katanga, Democratic Republic of Congo.

Specimen is in my personal collection.
Specimen purchased at a mineral show in Groningen, Netherland (April 2012)
Copyright: © DGM collection      Photo ID: 458485     Uploaded by: Dion Glastra   View Count: 147   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

4EL-2YGPseudomalachite

Miguel Vacas Mine, Conceição, Vila Viçosa, Évora, Portugal

Dimensions: 4 cm x 3.3 cm x 2.5 cm

Nice miniature with crystalline Pseudomalachite, which is relatively rare. The crystals are in cavities in this little matrix, so they are difficult to photograph. Locality: Miguel Vacas, Pardais, Vila Viçosa, Évora, Portugal.

Specimen dimensions: 4.0 x 3.3 x 2.5 cm

Specimen is in my personal collection.
Specimen purchased at mineral show in Utrecht, Netherlands (September 2011)
Copyright: © DGM collection      Photo ID: 413743     Uploaded by: Dion Glastra   View Count: 153   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

1EU-WVMCuprosklodowskite, Torbernite

Multiple photos available
Musonoi Mine, Kolwezi, Kolwezi mining district, Lualaba, DR Congo

Dimensions: 7.4 cm x 7.1 cm x 4.7 cm

Very nice and representative specimen of Cuprosklodowskite with Torbernite. This matrix is covered by several groups of intense, sparkling apple-green crystals of the rare radioactive silicate Cuprosklodowskite, and there are two very good Torbernite crystals on this specimen too (at the upper right). All dark green material on specimen is also Torbernite. From Musonoi, Kolwezi, Katanga, Dem. Rep. Congo.

Torbernite crystal size: 0.3 cm
Average crystal lenght of Cuprosklodowskite: 0.4 cm

Specimen is in my personal collection
Purchased at a mineral show in Utrecht, Netherlands (September 2011)
Copyright: © DGM collection      Photo ID: 413707     Uploaded by: Dion Glastra   View Count: 236   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)

TVA-CXJBoulangerite

Multiple photos available
Trepča Stan Terg Mine, Trepča complex, Trepča valley, Kosovska Mitrovica, District of Kosovska Mitrovica, Kosovo

Dimensions: 5.7 cm x 5.3 cm x 1.5 cm

Absolutely WONDERFUL Boulangerite specimen. This plate of matrix is covered by hundreds, maybe thousands very tiny and fibrous crystals of grey, lustrous Boulangerite. Very difficult to photograph. Classic locality: Stari Trg, Trepca, Kosovska Mitrovica, Kosovo.

Specimen dimensions: 5.7 x 5.3 x 1.5 cm
Average crystal length: 0.2 cm

Specimen is in my personal collection.
Purchased at a mineral show in Utrecht, Netherlands (September 2011)
Copyright: © DGM collection      Photo ID: 413685     Uploaded by: Dion Glastra   View Count: 308   Approval status: Public galleries    Type: Photo - 4000 x 3000 pixels (12.0 Mpix)
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