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    • Fluorite
      CSW1114726
      Fluorite
      Swinhopehead Mine, Daddry Shield, Weardale, County Durham, United Kingdom
      Size: 
      6 × 3.6 × 4.3 cm
      Miniature (4.5-7 cm)
      Description: 
      A large partial, single fluorite crystal to 4cm on edge. The crystal is a dark olive green colour and is mostly opaque but with one side...
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    • Beudantite & Cerussite
      CSW1087112
      Beudantite & Cerussite
      Old Sandbed Mine, Caldbeck, Cumbria, United Kingdom
      Size: 
      3.3 × 2.3 × 0.8 cm
      Small miniature (3-4.5 cm)
      Description: 
      Matrix with coatings of micro brown beudantite crystals associated with small white cerussite crystals, from a seldom offered Caldbeck...
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    • Analcime
      CSW1084359
      Analcime
      Loanhead Quarry, Beith, North Ayrshire, Scotland, United Kingdom
      Size: 
      7.3 × 5.6 × 3 cm
      Small cabinet (7-10 cm)
      Description: 
      A rare Loanhead Quarry example of lovely white opaque analcime crystals on analcime matrix. LC J8
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    • Cowlesite
      CSW1114716
      Cowlesite
      Ladyhill Quarry, Antrim, County Antrim, Northern Ireland, United Kingdom
      Size: 
      5.7 × 4.2 × 2.2 cm
      Miniature (4.5-7 cm)
      Description: 
      Basalt matrix with amygdales lined with nice grey spherules of the uncommon zeolite mineral, cowlesite. A4
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    • Mimetite & Beudantite
      CSW1114749
      Mimetite & Beudantite
      Deer Hills Mine, Deer Hills, Caldbeck, Cumbria, United Kingdom
      Size: 
      3.5 × 2.5 × 2.1 cm
      Small miniature (3-4.5 cm)
      Description: 
      Matrix with cavities containing green beudantite and colourless mimetite crystals. Some possible red carmine also present. A4
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    • Segnitite
      CSW1110957
      Segnitite
      Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
      Size: 
      1.9 × 1.4 × 1 cm
      Thumbnail (1-3cm)
      Description: 
      Quartz matrix with a nice coverage of small, dark green segnitite crystals. E4
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    • Hemimorphite
      CSW1058645
      Hemimorphite
      Greenside Mine, Glenridding, Patterdale, Cumbria, United Kingdom
      Size: 
      8.2 × 5.5 × 5.3 cm
      Small cabinet (7-10 cm)
      Description: 
      A rare and old-time specimen from the Greenside Mine of hemimorphite crystals coating a heavy baryte matrix. The hemimorphite crystals...
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    • Fluorite
      CSW1114741
      Fluorite
      Naica, Saucillo Municipality, Chihuahua, Mexico
      Size: 
      5 × 3.3 × 2.6 cm
      Miniature (4.5-7 cm)
      Description: 
      An unusual group of stepped, pale lavender coloured fluorite crystals from Naica. A1
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    • Carnotite
      CSW1114731
      Carnotite
      Anderson Mine, Date Creek Basin, Yavapai County, Arizona, United States of America
      Size: 
      5 × 2.5 × 3 cm
      Miniature (4.5-7 cm)
      Description: 
      Matrix with nice bright yellow carnotite crystals which display bright green fluorescence under short wave UV light. A1
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    • Pyrite
      CSW1098543
      Pyrite
      Warden Point, Isle of Sheppey, Swale, Kent, United Kingdom
      Size: 
      4 × 1.4 × 1.2 cm
      Small miniature (3-4.5 cm)
      Description: 
      Matrix with lots of micro, iridescent pyrite crystals. L8
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    • Chabazite-Ca
      CSW1095259
      Chabazite-Ca
      Craigs Quarry, Ballymena, County Antrim, Northern Ireland, United Kingdom
      Size: 
      6.8 × 4.4 × 3 cm
      Miniature (4.5-7 cm)
      Description: 
      Basalt matrix covered in hundreds of small, bright colourless chabazite-Ca crystals, many displaying nice penetration twinning. LC A4
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    • Cobaltite & Actinolite
      CSW1114722
      Cobaltite & Actinolite
      Brazil Lake, Foster Township, Sudbury District, Ontario, Canada
      Size: 
      5 × 2.8 × 2.8 cm
      Miniature (4.5-7 cm)
      Description: 
      Actinolite matrix with nice cubic cobaltite crystals. A4
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    • Franckeite
      CSW1114738
      Franckeite
      San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
      Size: 
      2.4 × 1.7 × 1 cm
      Thumbnail (1-3cm)
      Description: 
      A dense mass of radial franckeite crystals from a classic Bolivian locality. A1
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    • Baryte
      CSW1106692
      Baryte
      Moss Rake, Bradwell Moor, Derbyshire, United Kingdom
      Size: 
      3.7 × 2.6 × 1.8 cm
      Small miniature (3-4.5 cm)
      Description: 
      Nice golden-brown, iron stained baryte crystals on matrix. D
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    • Alstonite
      CSW1110962
      Alstonite
      Brownley Hill Mine, Nenthead, Cumbria, United Kingdom
      Size: 
      2.8 × 1.8 × 1.6 cm
      Thumbnail (1-3cm)
      Description: 
      Matrix with a dense coverage of colourless alstonite crystals from the species Type Locality. LC E1
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    • Lipscombite Fluellite & Baryte
      CSW1106697
      Lipscombite Fluellite & Baryte
      Silver Coin Mine, Valmy, Humboldt County, Nevada, United States of America
      Size: 
      5.3 × 3 × 2.5 cm
      Miniature (4.5-7 cm)
      Description: 
      Matrix with a nice suite of minerals including dark green lipscombite and colourless baryte and fluellite crystals. D
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    • Titanite Calcite & Chlorite
      CSW1106688
      Titanite Calcite & Chlorite
      Ritterkopf, Ritterkopf Massif, Zell am See District, Salzburg, Austria
      Size: 
      8.1 × 5.6 × 3.5 cm
      Small cabinet (7-10 cm)
      Description: 
      Matrix which appears to be some sort of cast covered in calcite and small green chlorite crystals with lots of transparent brown titanite...
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    • Chalcosiderite
      CSW1114721
      Chalcosiderite
      Wheal Phoenix, Linkinhorne, Cornwall, United Kingdom
      Size: 
      7 × 4.5 × 2 cm
      Small cabinet (7-10 cm)
      Description: 
      Matrix with rich vein coatings of dark green chalcosiderite crystals. A4
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    • Analcime
      CSW1114729
      Analcime
      Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, United Kingdom
      Size: 
      6.3 × 5.3 × 4.7 cm
      Miniature (4.5-7 cm)
      Description: 
      Basalt matrix with an amygdale containing an extremely rare example of a spherical cluster of red analcime crystals associated with the...
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    • Tridymite
      CSW1098533
      Tridymite
      State highway 78 roadcuts, Big Lue Mountains, Greenlee County, Arizona, United States of America
      Size: 
      2 × 1.5 × 0.9 cm
      Thumbnail (1-3cm)
      Description: 
      Volcanic matrix with cavities containing colourless, platy, tridymite crystals. L8
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    • Baryte
      CSW1098542
      Baryte
      Tenter Hill, Bramham, West Yorkshire, United Kingdom
      Size: 
      4.4 × 3.5 × 2.6 cm
      Small miniature (3-4.5 cm)
      Description: 
      Matrix with a cavity lined with lots of small, white baryte crystals. L8
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    • Phosgenite
      CSW1102427
      Phosgenite
      Legrena Slag Locality, Sounion Area, Attica, Greece
      Size: 
      2.5 × 2.5 × 2 cm
      Thumbnail (1-3cm)
      Description: 
      Slag matrix with cavities containing small colourless phosgenite crystals. K9
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    • Calcite & Dolomite
      CSW1106690
      Calcite & Dolomite
      Abbeytown Quarry, County Sligo, Irish Republic (Eire)
      Size: 
      4.7 × 3.8 × 2.5 cm
      Miniature (4.5-7 cm)
      Description: 
      A nice golden brown, complex calcite crystals perched on dark limestone matrix with small dolomite crystals. D
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    • Aurichalcite
      CSW1114735
      Aurichalcite
      Wet Grooves Mine, Aysgarth, Wensleydale, North Yorkshire, United Kingdom
      Size: 
      3.3 × 2.3 × 2 cm
      Small miniature (3-4.5 cm)
      Description: 
      Delicate, teal-blue sprays of auricahlcite crystals on calcite matrix. A1
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    • Gmelinite-Na Analcime Calcite & Natrolite
      CSW1114728
      Gmelinite-Na Analcime Calcite & Natrolite
      Little Deerpark Quarry, Glenarm, County Antrim, Northern Ireland, United Kingdom
      Size: 
      9 × 7.5 × 6 cm
      Small cabinet (7-10 cm)
      Description: 
      Basalt matrix with amygdales containing nice unusual creamy white gmelinite-Na crystals associated with colourless analcime, natrolite and...
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    • Fluorite & Siderite
      CSW1114717
      Fluorite & Siderite
      Allenheads Mine, Allendale, Northumberland, United Kingdom
      Size: 
      3.6 × 3.8 × 3 cm
      Small miniature (3-4.5 cm)
      Description: 
      A group of very dark, partial fluorite crystals to 2.4cm on edge which display nice zoning/phantoms when backlit. Partially coated with...
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    • Baryte
      CSW1114718
      Baryte
      Brandy Bottle Mine, Swaledale, North Yorkshire, United Kingdom
      Size: 
      4.5 × 3.3 × 2.5 cm
      Miniature (4.5-7 cm)
      Description: 
      Matrix with cavities lined with nice sharp baryte crystals from a classic Yorkshire mining locality. A4
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    • Specularite & Quartz
      CSW1114724
      Specularite & Quartz
      Florence Mine, Haile, Cumbria, United Kingdom
      Size: 
      7.2 × 4.5 × 3.5 cm
      Small cabinet (7-10 cm)
      Description: 
      Hematite matrix with a cavity lined with colourless quartz crystals and large lustrous, dark specularite crystals. A1
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    • Smithsonite & Chalcopyrite
      CSW1106707
      Smithsonite & Chalcopyrite
      Blackcraig Mines, Newton Stewart, Dumfries & Galloway, Scotland, United Kingdom
      Size: 
      1.5 × 1.4 × 1 cm
      Thumbnail (1-3cm)
      Description: 
      Matrix with cavities containing small chalcopyrite crystals partially overgrown by deep brown smithsonite micro crystals. D
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    • Celestine
      CSW1114745
      Celestine
      Yate, Gloucestershire, United Kingdom
      Size: 
      6.5 × 6 × 4.5 cm
      Miniature (4.5-7 cm)
      Description: 
      A nice group of large Celestine crystals from this classic English locality which display a nice lavender fluorescence under short wave UV...
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    Page 1 of 30 results