![Yellow fluorite untwinned crystal, 4 cm specimen, Hilton Mine, Scordale, North Pennines, Cumbria.](https://a4.pbase.com/g1/41/984841/3/145747898.E5lcyEcF.jpg) Yellow fluorite untwinned crystal, 4 cm specimen, Hilton Mine, Scordale, North Pennines, Cumbria. |
![Amber-coloured transparent fluorite penetration twin, 22 mm on edge, Hilton Mine, Scordale, North Pennines, Cumbria, England.](https://a4.pbase.com/g6/41/984841/3/150001719.NvVNoIZQ.jpg) Amber-coloured transparent fluorite penetration twin, 22 mm on edge, Hilton Mine, Scordale, North Pennines, Cumbria, England. |
![Yellow fluorite interpenetrant twin, 45 mm, Hilton Mine, Scordale, North Pennines, Cumbria, England.](https://a4.pbase.com/g10/41/984841/3/150671882.FFmS3I2f.jpg) Yellow fluorite interpenetrant twin, 45 mm, Hilton Mine, Scordale, North Pennines, Cumbria, England. |
![Detail of octahedral etch pits in Hilton Mine fluorite.](https://a4.pbase.com/g1/41/984841/3/146689356.D18oaGUo.jpg) Detail of octahedral etch pits in Hilton Mine fluorite. |
![Detail of octahedral etch pits in Hilton Mine fluorite.](https://a4.pbase.com/g1/41/984841/3/146689354.vU40dNlf.jpg) Detail of octahedral etch pits in Hilton Mine fluorite. |
![Fluorite gem twin Hilton Mine, 45 mm specimen](https://a4.pbase.com/g2/41/984841/3/148479337.kOHEopOh.jpg) Fluorite gem twin Hilton Mine, 45 mm specimen |
![Detail of 1 cm gem twin from the Hilton Mine showing hexoctahedral corner modifications.](https://a4.pbase.com/g2/41/984841/3/148579393.MQk5W5x3.jpg) Detail of 1 cm gem twin from the Hilton Mine showing hexoctahedral corner modifications. |
![Fluorite gem twin (15 mm) with sulphide inclusions, 6 cm specimen. Hilton Mine, Scordale, Cumbria.](https://a4.pbase.com/g9/41/984841/3/150267577.8SuE62lB.jpg) Fluorite gem twin (15 mm) with sulphide inclusions, 6 cm specimen. Hilton Mine, Scordale, Cumbria. |
![Beautiful transparent twinned fluorite, 17 mm across. Note blue growth lines. Dow Scar vein, Hilton Mine, Scoredale.](https://a4.pbase.com/g2/41/984841/3/147449264.AwMUa4mg.jpg) Beautiful transparent twinned fluorite, 17 mm across. Note blue growth lines. Dow Scar vein, Hilton Mine, Scoredale. |
![Fluorite crystal detail, crystals to 5 mm on 5 cm matrix. Clouds Mine, Ravenstonedale, Kirkby Stephen, Cumbria.](https://a4.pbase.com/g2/41/984841/3/148087904.AXBcIkJ1.jpg) Fluorite crystal detail, crystals to 5 mm on 5 cm matrix. Clouds Mine, Ravenstonedale, Kirkby Stephen, Cumbria. |
![Fluorite cubes to 12 mm with tetrahexahedral edges and hexoctahedral corners. Fothergill Sike, Birkett Common, Kirkby Stephen.](https://a4.pbase.com/g9/41/984841/3/150367800.t0JYtYDo.jpg) Fluorite cubes to 12 mm with tetrahexahedral edges and hexoctahedral corners. Fothergill Sike, Birkett Common, Kirkby Stephen. |
![Cerussite on fluorite crystals, 7 cm specimen. Hilton Mine, Scordale, Cumbria. CS January 1982.](https://a4.pbase.com/g2/41/984841/3/149323095.C5LGGib1.jpg) Cerussite on fluorite crystals, 7 cm specimen. Hilton Mine, Scordale, Cumbria. CS January 1982. |
![Calcite crystals, 43 mm, Hilton Mine, Cumbria, England, UK. One individual is rotated 180 degrees relative to the other.](https://a4.pbase.com/g10/41/984841/3/145963134.sahLwvzq.jpg) Calcite crystals, 43 mm, Hilton Mine, Cumbria, England, UK. One individual is rotated 180 degrees relative to the other. |
![Malachite crystals from the Murton Mine, fine crystals to 3 mm, field of view 7 mm (longest edge).](https://a4.pbase.com/g12/41/984841/3/171745614.9he52ll7.jpg) Malachite crystals from the Murton Mine, fine crystals to 3 mm, field of view 7 mm (longest edge). |
![Azurite crystals to about 1.5 mm on 2 cm quartz matrix. Cumpston Hill, Mallerstang, Cumbria.](https://a4.pbase.com/g2/41/984841/3/149143721.vgNJtcUq.jpg) Azurite crystals to about 1.5 mm on 2 cm quartz matrix. Cumpston Hill, Mallerstang, Cumbria. |
![Azurite crystals to about 1 mm, High Longrigg, Kirkby Stephen, Cumbria](https://a4.pbase.com/g10/41/984841/3/146647712.cU2OR9ky.jpg) Azurite crystals to about 1 mm, High Longrigg, Kirkby Stephen, Cumbria |
![2 mm azurite crystal group with malachite. Cumpston Hill, Mallerstang, Cumbria.](https://a4.pbase.com/g1/41/984841/3/146314413.8MKr3A4C.jpg) 2 mm azurite crystal group with malachite. Cumpston Hill, Mallerstang, Cumbria. |
![Baryte in 20 cm group of tabular crystals. Hilton Mine, Scordale, Cumbria.](https://a4.pbase.com/g9/41/984841/3/150267576.E1oq8Nac.jpg) Baryte in 20 cm group of tabular crystals. Hilton Mine, Scordale, Cumbria. |
![A large barite crystal, 85 mm, from Dufton Fell, Dufton, Cumbria. A distinctive collar of micro pyrite crystals can be seen.](https://a4.pbase.com/g10/41/984841/3/149015837.woKAM2Jb.jpg) A large barite crystal, 85 mm, from "Dufton Fell", Dufton, Cumbria. A distinctive collar of micro pyrite crystals can be seen. |
![Baryte crystal, 85 mm long, Silverband Mine, Cumbria.](https://a4.pbase.com/g10/41/984841/3/154207010.wcNjmYsV.jpg) Baryte crystal, 85 mm long, Silverband Mine, Cumbria. |
![Barite, 26 mm doubly terminated crystal, Old Sun Vein, Lunedale Rakes, Lunedale, Co Durham.](https://a4.pbase.com/g2/41/984841/3/147861452.uzC2rsvr.jpg) Barite, 26 mm doubly terminated crystal, Old Sun Vein, Lunedale Rakes, Lunedale, Co Durham. |
![Baryte crystals, 63 mm. Hilton Mine. Scordale, Cumbria, UK.](https://a4.pbase.com/g9/41/984841/3/151078376.r0aFVjIb.jpg) Baryte crystals, 63 mm. Hilton Mine. Scordale, Cumbria, UK. |
![Anglesite, 1 mm, with cerussite and fluorite, Hilton Mine, Scordale, Cumbria](https://a4.pbase.com/g12/41/984841/3/170157233.kiLpYjC2.jpg) Anglesite, 1 mm, with cerussite and fluorite, Hilton Mine, Scordale, Cumbria |
![Hemimorphite crystals, Hartley Birkett Mine, Hartley, Kirkby Stephen, Cumbria.](https://a4.pbase.com/g1/41/984841/3/145961913.48jUJcmR.jpg) Hemimorphite crystals, Hartley Birkett Mine, Hartley, Kirkby Stephen, Cumbria. |
![Murton mimetite.jpg](https://a4.pbase.com/g12/41/984841/3/171789246.3Z50fcZk.jpg) Murton mimetite.jpg |