Editing Metalliferous mineral veins, Geology and man, Midland Valley of Scotland

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Small amounts of silver were produced from Hilderston in the Bathgate Hills and from Alva in the Ochil Hills in the early seventeenth and eighteenth century respectively. At Hilderston, vein mineralisation containing baryte and niccolite with some native silver occurred in an E–W fault-plane, adjacent to a quartz-dolerite dyke. The country rocks are clastic sediments of the Lower Limestone Group within a predominantly volcanic succession. Annabergite (nickel bloom) and erythrite (cobalt bloom) are also recorded. Near Alva, several veins contain native silver and argentite with erythrite in a gangue of calcite and quartz. The most important mine was at Silver Glen, Alva, where both silver and cobalt were extracted.
 
Small amounts of silver were produced from Hilderston in the Bathgate Hills and from Alva in the Ochil Hills in the early seventeenth and eighteenth century respectively. At Hilderston, vein mineralisation containing baryte and niccolite with some native silver occurred in an E–W fault-plane, adjacent to a quartz-dolerite dyke. The country rocks are clastic sediments of the Lower Limestone Group within a predominantly volcanic succession. Annabergite (nickel bloom) and erythrite (cobalt bloom) are also recorded. Near Alva, several veins contain native silver and argentite with erythrite in a gangue of calcite and quartz. The most important mine was at Silver Glen, Alva, where both silver and cobalt were extracted.
  
== Lead-zinc  ==
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==== Lead-zinc  ====
 
Several veins containing galena and rarely sphalerite cut Silurian sediments in the Nutberry Hill–River Nethan area, Muirkirk. In Fife there are several noted occurrences of galena associated with Carboniferous limestones and/or quartz-dolerite intrusions, and some extraction took place. Galena is present in some of the Ochil mines, including Silver Glen, Alva. At Hilderston, galena and sphalerite were extracted from deeper levels of the silver-bearing vein and from an adjacent vein, both in limestone.
 
Several veins containing galena and rarely sphalerite cut Silurian sediments in the Nutberry Hill–River Nethan area, Muirkirk. In Fife there are several noted occurrences of galena associated with Carboniferous limestones and/or quartz-dolerite intrusions, and some extraction took place. Galena is present in some of the Ochil mines, including Silver Glen, Alva. At Hilderston, galena and sphalerite were extracted from deeper levels of the silver-bearing vein and from an adjacent vein, both in limestone.
  

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