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Images Dated 2013 May

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Background imageImages Dated 2013 May: 24 May 2013

24 May 2013
Malachite, North Wheal Basset, Illogan, Cornwall, England

Images Dated 2013 May: 28 May 2013

28 May 2013 Collection
3 Items

Images Dated 2013 May: 29 May 2013

29 May 2013 Collection
2 Items

Images Dated 2013 May: 30 May 2013

30 May 2013 Collection
3 Items

Images Dated 2013 May: 31 May 2013

31 May 2013 Collection
4 Items

Background imageImages Dated 2013 May: Bournonite with Quartz, Herodsfoot Mine, Lanreath, Cornwall, England

Bournonite with Quartz, Herodsfoot Mine, Lanreath, Cornwall, England
Steel-grey twinned bournonite crystals, in distinctive cog wheel formation, with colourless quartz. This fine specimen from the lead and silver mine, Herodsfoot

Background imageImages Dated 2013 May: Tetrahedrite, Trenance, St Issey, near Padstow, Cornwall, England

Tetrahedrite, Trenance, St Issey, near Padstow, Cornwall, England
Tetrahedrite coated in chalcopyrite with minor siderite. Collector Philip Rashleigh wrote: Crystals of Grey Copper Ore in triangles with a little spatose Iron Ore, near Padstow. Rashleigh Collection

Background imageImages Dated 2013 May: Cassiterite, Wherry Mine, Wherrytown, Penzance, Cornwall, England

Cassiterite, Wherry Mine, Wherrytown, Penzance, Cornwall, England
Cassiterite with quartz. A very rich tin ore of a brown colour with black crystals of a curious form on the surface intermixed with white quartz

Background imageImages Dated 2013 May: Wolframite, Castle an Dinas Mine, St Columb Major, Cornwall, England

Wolframite, Castle an Dinas Mine, St Columb Major, Cornwall, England
Wolframite contains iron, manganese and tungsten and is the main ore mineral of tungsten. Until the mid 1800s it was treated as a waste product but it later became a high value by product at many tin

Background imageImages Dated 2013 May: Chalcophyllite, Wheal Gorland, St Day, Gwennap, Cornwall, England

Chalcophyllite, Wheal Gorland, St Day, Gwennap, Cornwall, England
Coarse crystals of chalcophyllite. Collector Philip Rashleigh wrote in his mineral catalogue: Transparent six sided thin Crystals of Copper Ore with some eight sided crystals of green Do

Background imageImages Dated 2013 May: Torbernite on Quartz, Wheal Basset, Illogan, Cornwall, England

Torbernite on Quartz, Wheal Basset, Illogan, Cornwall, England
An earthy, orange coated, quartz mass bearing fine towers and clusters of books of emerald to bottle green square plates of torbernite

Background imageImages Dated 2013 May: Clinoclase, St Day, Gwennap, Cornwall, England

Clinoclase, St Day, Gwennap, Cornwall, England
Spheroidal clinoclase coating liroconite, 4.5 cm in diameter. The specimen is probably from Wheal Gorland or Wheal Unity. Collector Philip Rashleigh wrote in his mineral catalogue

Background imageImages Dated 2013 May: Native Copper, Cooks Kitchen, Illogan, Cornwall, England

Native Copper, Cooks Kitchen, Illogan, Cornwall, England
Solid crystalline copper like a root of a tree crystallised at the points. Collector Philip Rashleigh wrote in his mineral catalogue: Virgin Copper in form of the Root of a Tree

Background imageImages Dated 2013 May: Cassiterite, Wheal Maudlin, Lostwithiel (formerly in Lanlivery Parish), Cornwall, England

Cassiterite, Wheal Maudlin, Lostwithiel (formerly in Lanlivery Parish), Cornwall, England
A superb twinned crystal of cassiterite. In Cornwall, cassiterite is concentrated in hydrothermal veins and pegmatites associated with granite intrusions

Background imageImages Dated 2013 May: Cassiterite Partly Replacing Orthoclase, Wheal Coates, St Agnes, Cornwall, England

Cassiterite Partly Replacing Orthoclase, Wheal Coates, St Agnes, Cornwall, England
Twinned crystals of orthoclase feldspar partially replaced by cassiterite. This rare kind of replacement, or partial pseudomorph, is best seen in specimens from Wheal Coates

Background imageImages Dated 2013 May: Copper with Quartz, South Caradon Mine, St Cleer, Cornwall, England

Copper with Quartz, South Caradon Mine, St Cleer, Cornwall, England
Copper with crystalline quartz. Most Cornish copper specimens are dull, but native copper (pure copper, uncombined with any other elements) from Caradon is invariably bright

Background imageImages Dated 2013 May: Malachite, North Wheal Basset, Illogan, Cornwall, England

Malachite, North Wheal Basset, Illogan, Cornwall, England
Clusters of botryoidal malachite crystals. Malachite is a common hydrated copper carbonate secondary mineral, formed by the near surface weathering of primary sulphide minerals

Background imageImages Dated 2013 May: Chalcopyrite on Quartz, Dolcoath Mine, Camborne, Cornwall, England

Chalcopyrite on Quartz, Dolcoath Mine, Camborne, Cornwall, England
Brassy yellow crystals of chalcopyrite, with an iridescent tarnish, on colourless quartz crystals. The specimen label states Six sided cristals of yellow copper ore crossing each other in opake


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