United Kingdom


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I began, some years ago, collecting some English fluorite specimens (old classic), adding them some other UK minerals. For the geographical classification pf England I have followed the historic division in countries of England, that continue to form the basis of modern local government; I put them from north to south.
Fluorite is the most represented mineral

 

England, Cumberland

 

Baryte after alstonite
White pseudo-hexagonal biterminated pyramidal XX up to 0.7cm of baryte replacing alstonite. On matrix with micro crystalline sphalerite. From a type loc (lead mine)
4.5x4.5cm
Brownley Hill mine, Alston Moore district, Cumberland, England. UK
Specimen n.388

2nd photo
3rd photo: close-up view

 

Calcite
A detail of specimen: complex X, yellowish and transparent, with inclusions and phantom clearly visible. This piece has other different calcite XX, posted on a surface covered by goethite and red hematite
4.5x4.5cm
Unknown, Cumberland, England. UK
Specimen n.1182

2nd photo
3rd photo

 

Fluorite
Quartz-rich rock covered by transparent XX of fluorite, edge up to 1.4 cm, with a gray color given by matrix
20x12cm
Cumberland, England. UK
Specimen n.967

2nd photo
3rd photo
4th photo

 

Hematite
Lustrous piece of classic "kidney-ore" hematite, with botryoidal surfaces
10x8cm
Parkside mine, Frizington, Cumberland, England. UK
Specimen n.1345

2nd photo


Hematite
Small and bright XX of hematite, in the vug with quartz transparent XX
10x9cm
Parkside mine, Frizington, Cumberland, England. UK
Specimen n.1365

2nd photo

England, Country Durham

 

Fluorite
Smokey pink to almost yellow cubic XX, edge up to 3.4 cm
7x4.5cm
Queensberry Ironstone Workings (Burtree Slits), Cowshill, Weardale, Co Durham, England. UK
Specimen n.624

2nd photo

 

Fluorite
Cubic blue-green XX, up to  0.9cm edge, on matrix, with a typical twinned formation. These specimens show a green color under electric light that moves to green and blue under the sun light. The specimens from this type locality are strongly fluorescent in blue (see Fluorescent minerals section).
10x7.5cm 
Rogerley mine, Weardale, Co. Durham, England. UK
Specimen n.69

Specimen in the Fluorescent mineral section

2nd photo
3rd photo

 

Fluorite
Cubic XX, dark green, up to  2 cm, twinned as often occours; XX surfaces are  corroded. There are some malformed galena XX on the piece
9x7.5cm 
Rogerley mine, Weardale, Co. Durham, England. UK
Specimen n.1248

2nd photo 

 

Fluorite
Classic piece from Weardale: fluorite with galena
11x9cm 
Rogerley mine, Weardale, Co. Durham, England. UK
Specimen n.1442

2nd photo

 

Fluorite
In this piece the combination of XX forms a sort of  elongated cubes. Color is pale lilac-to-brown, there are some internal fractures. No matrix
4x3cm
Durham Coalfield, Co. Durham, England. UK
Specimen n.727

 

Fluorite
XX up to 3cm

12x10
cm
Blue Circle Cement Quarry, Eastgate, Weardale, Co Durham, England. UK
Specimen n.630

2nd photo

 

Fluorite
Twinned formation of pale yellow transparent cubes, with calcite

5.5x3.5
cm
Blue Circle Quarry, Eastgate, Weardale, Co Durham, England. UK
Specimen n.629

 

Fluorite
Cubic XX, edge up to 1 cm, covered by a coating of white microcrystalline quartz
12x7cm
Quarry Hill Vein, Stanhope, Weardale, Co Durham, England. UK
Specimen n.704

England, Westmorland

 

Fluorite
Cubic XX, edge up to 0.4 cm
7x5cm
Long Fell mine (Dow Scar Level), Scordale, Hilton, Westmorland, England. UK
Specimen n.121

2nd photo

 

Fluorite
Twinned cubic XX, from yellow to white, with small other XX. Edge max up to 1cm
4.5x3cm
Hilton mine, Scordale, Hilton, Westmorland, England. UK
Specimen n.635

2nd photo
3rd photo

England, Yorkshire

 

Fluorite
Detail of an interesting piece: the XX are pale purple, with a yellow inner part
9x6cm
Cold Stones Quarry, Pately Bridge, Yorkshire, England. UK
Specimen n.716

2nd photo

 

Fluorite
Cubic XX, partially covered by smithsonite, with a small baryte rosette
9.5x6.5cm
Intersection of Garnet and Sunveins, Coldstones Quarry, Greenhow, Pateley Bridge disctrict, North Yorkshire, England. UK
Specimen n.628

England, Derbyshire

 

Fluorite
Group of XX, edge up to 2.5 cm.
I have been told that the rust on them comes from the fact that originally the fluorite crystals were covered in marcasite, the marcasite has eroded and oxidised. The crystals also have unaltered marcasite crystals in planes within each crystal. Sometimes it is possible to find similar pieces called "Blue John" fluorite, from the Blue John cavern. (the name derives from the French "blue jaune", that is blue yellow; in fact, it is a yellow fluorite colored by films of oil and hydrocarbons), but the original Blue John is only massive 
5.5x5cm
Milltown quarry, Ashover, Derbyshire, England. UK
Specimen n.893

 

Fluorite
Another bluish specimen from the same place of previous one. Edge of XX is up to 3.8 cm
10x7cm
Milltown quarry, Ashover, Derbyshire, England. UK
Specimen n.892


England, Cornwall

 

Cassiterite
Group of XX, twinned, up to 0.8 cm long, on mineralized matrix covered by quartz. From an old mining area with different mineral sites
5.5x5cm
Redruth, Troon-lanner area, Camborne-Redruth-St Day district, Cornwall, England. UK
Specimen n.513

Scotland, Argyllshire, Strontian baryte mine

 

Harmotome
XX up to 1.1cm, with sulphide inclusion (better visible in the 2nd photo), on pale brown calcite matrix
6.5x5cm
Whitesmith Opencut, Strontian Baryte mine, Scotland. UK
Specimen n.625

2nd photo

 

Harmotome
Bright XX, up to 1cm, on brown calcite
7.5x4.5cm
Clashgorn Modern Workings, Strontian Baryte mine, Scotland. UK
Specimen n.616

2nd photo

 

 

Baryte  
Spherical cockscomb balls of baryte, intergrown with scalenohedral calcite, a typical sample from this place
6x4.5cm
New workings, Strontian Baryte mine, Scotland. UK
Specimen n.615

2nd photo

 




Calcite
Typical honey brown calcite (edge up to 1cm), with a growth of white harmotome to 0.2cm
6x5.5cm
Clashgorn Modern Workings, Strontian Baryte mine, Strontian, Scotland. UK
Specimen n.627



Strontianite
Cavity in a barite/sphalerite vein that has been filled with well-formed acicular strontianite XX, brown at the base and clear at the tips
6x4cm
Whitesmith Mine, Strontian mine, Scotland. UK
Specimen n.614

2nd photo
3rd photo


 

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