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Wolfgang Hampel's Photo Gallery

NTF-A0GCovellite CuS , Cuprite Cu2O , Chalcopyrite CuFeS2

01905310015573975015959.jpg
R.H.A. tungsten mine, Hwange District, Matabeleland North, Zimbabwe

Field of View: 200 μm

Polished section of copper ore where a mixture of covellite (blue) and cuprite (red) replaces chalcopyrite along the edges.
Copyright: © Wolfgang Hampel      Photo ID: 954310     Uploaded by: Wolfgang Hampel   View Count: 10   Approval status: Public galleries    Type: Photo - 1280 x 960 pixels (1.2 Mpix)

RY5-7U7Arsenopyrite FeAsS , Chalcopyrite CuFeS2

09308290015392680512301.jpg
R.H.A. tungsten mine, Hwange District, Matabeleland North, Zimbabwe

Field of View: 80 mm

A cut and oiled drill core with a quartz vein in mica schist showing subhedral, silvery metallic arsenopyrite and bronze coloured chalcopyrite. This is the first reported occurrence of arsenopyrite at RHA after more than 120 years of intermittent mining. Polished sections of this sample will probably reveal other ore minerals as spot readings with a portable XRF have as well shown high cobalt and silver values. From a drill core drilled in October 2018.
Copyright: © Wolfgang Hampel      Photo ID: 914012     Uploaded by: Wolfgang Hampel   View Count: 26   Approval status: Public galleries    Type: Photo - 2324 x 1417 pixels (3.3 Mpix)

E35-47DFluorite CaF2 , Pyrite FeS2

02296950015377860381558.jpg
R.H.A. tungsten mine, Hwange District, Matabeleland North, Zimbabwe

Field of View: 150 mm

A thin vein in mica schist with green and purple fluorite, as well as some minor pyrite. Fluorite seems to be very rare at RHA; in intermittent production since 1890, this is the first example of fluorite from RHA. From a drill core drilled in September 2018.
Copyright: © Wolfgang Hampel      Photo ID: 910881     Uploaded by: Wolfgang Hampel   View Count: 27   Approval status: Public galleries    Type: Photo - 3850 x 1560 pixels (6.0 Mpix)

74M-XWWLepidolite, Albite Na(AlSi3O8)

02371830015318984019263.jpg
Murrua, Alto Ligonha District, Zambezia Province, Mozambique

Largest Crystal Size: 52 mm

Dark purple lepidolite probably replacing earlier tourmaline; XRD has shown that the lepidolite is intergrown with cookeite, the whitish groundmass is mainly cleavelandite. Found in June 2018 at the ROM pad of Murrua Mine.
Copyright: © Wolfgang Hampel      Photo ID: 900090     Uploaded by: Wolfgang Hampel   View Count: 27   Approval status: Public galleries    Type: Photo - 3567 x 2337 pixels (8.3 Mpix)

0DN-L96Indicolite A(D3)G6(T6O18)(BO3)3X3Z

09627060015314102098427.jpg
Murrua, Alto Ligonha District, Zambezia Province, Mozambique

Field of View: 41 mm

A somewhat strange specimen with a subhedral schorl crystal in quartz surrounded by indicolite (i.e. blue tourmaline) grains. The indicolite is XRD confirmed, but it is impossible to distinguish the different members of the tourmaline group by XRD only; most likely it is an elbaite. I collected it in June 2018 on the ROM pad of the Murrua Mine. Any collecting at the mine is prohibited, the mining concession is fenced in and heavily guarded.
Copyright: © Wolfgang Hampel      Photo ID: 898901     Uploaded by: Wolfgang Hampel   View Count: 43   Approval status: Public galleries    Type: Photo - 3220 x 2315 pixels (7.5 Mpix)

61C-G3WCalcite CaCO3

07957200015309620906798.jpg
Lagoa Azul, Lobata District, São Tomé Island, São Tomé and Príncipe

Field of View: 25 mm

Vesicular basalt with small calcite crystals and radiating aggregates.
Copyright: © Wolfgang Hampel      Photo ID: 897826     Uploaded by: Wolfgang Hampel   View Count: 52   Approval status: Public galleries    Type: Photo - 1896 x 1453 pixels (2.8 Mpix)

Rounded basaltic boulders

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Lagoa Azul, Lobata District, São Tomé Island, São Tomé and Príncipe

In situ photo of rounded basaltic boulders, often strongly vesicular. No other minerals than calcite seem to be present. Photo taken in May 2018.
Copyright: © Wolfgang Hampel      Photo ID: 897825     Uploaded by: Wolfgang Hampel   View Count: 39   Approval status: Public galleries    Type: Photo - 4608 x 2592 pixels (11.9 Mpix)

Vesicular basalt with calcite

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Lagoa Azul, Lobata District, São Tomé Island, São Tomé and Príncipe

Typical vesicular basalt from this lagoon, during a short site visit I could discover only calcite crystals, no traces of zeolites or other minerals. Photo taken in May 2018.
Copyright: © Wolfgang Hampel      Photo ID: 897824     Uploaded by: Wolfgang Hampel   View Count: 55   Approval status: Public galleries    Type: Photo - 4608 x 2592 pixels (11.9 Mpix)

Baobab trees on basalt

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Lagoa Azul, Lobata District, São Tomé Island, São Tomé and Príncipe

A small peninsula underlain by vesicular basalt. Photo taken in May 2018.
Copyright: © Wolfgang Hampel      Photo ID: 897823     Uploaded by: Wolfgang Hampel   View Count: 34   Approval status: Public galleries    Type: Photo - 4608 x 2592 pixels (11.9 Mpix)

Pico Maria Fernandes, a phonolitic plug

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São Tomé Island, São Tomé and Príncipe

Pico Maria Fernandes, a young phonolitic plug in the south east of São Tomé Island. Photo taken in May 2018.
Copyright: © Wolfgang Hampel      Photo ID: 897818     Uploaded by: Wolfgang Hampel   View Count: 19   Approval status: Public galleries    Type: Photo - 2592 x 4070 pixels (10.5 Mpix)
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