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Chalcedony from
Ashford Black Marble mines, Ashford-in-the-Water, Derbyshire, England, UK

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:Ford, T., A. Sarjeant & M. Smith (1993): The minerals of the Peak district of Derbyshire. UK Jour. Mines & Minerals 13, 16-55.
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Ashford Black Marble mines, Ashford-in-the-Water, Derbyshire, England, UK
Nearest other occurrences of Chalcedony
1.1km (0.7 miles) Dirtlow Rake, Ashford-in-the-Water, Derbyshire, England, UK
2.0km (1.2 miles) Holme Bank Mine (Castle Hill Mine), Bakewell, Derbyshire, England, UK
8.8km (5.5 miles) Hucklow Edge, Great Hucklow, Derbyshire, England, UK
14.3km (8.9 miles) Masson Hill and mines, Matlock, Derbyshire, England, UK
14.8km (9.2 miles) Dale Mine, Warslow, Warslow and Elkstones, Staffordshire, England, UK
14.8km (9.2 miles) High Tor, Matlock, Derbyshire, England, UK
110.4km (68.6 miles) Roman Gravels Mine, Hope-Shelve District, Shropshire, England, UK
111.2km (69.1 miles) Rock Mine, Callow Hill-Bog District, Shropshire, England, UK
112.3km (69.8 miles) Radley Mine, Black Radley Hill, Callow Hill-Bog District, Shropshire, England, UK
112.6km (70.0 miles) Grit Mines (East Grit; White Grit; Old Grit; Foxholes), Hope-Shelve District, Shropshire, England, UK
165.9km (103.1 miles) Eycott Hill, Keswick, Keswick District, North and Western Region (Cumberland), Cumbria, England, UK
166.0km (103.1 miles) Falcon Crag, Keswick District, North and Western Region (Cumberland), Cumbria, England, UK
178.4km (110.9 miles) Sikehead Mine, Hunstanworth, Derwent Valley, North Pennines, Co. Durham, England, UK
179.0km (111.2 miles) Whiteheaps Mine, Hunstanworth, Derwent Valley, North Pennines, Co. Durham, England, UK
180.4km (112.1 miles) Haile Moor Mine, Egremont, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England, UK
181.4km (112.7 miles) Force Crag Mine (Force Craig Mine), Coledale, Braithwaite District, North and Western Region (Cumberland), Cumbria, England, UK
182.6km (113.5 miles) Reeding Mine, Blanchland, Derwent Valley, North Pennines, Northumberland, England, UK
182.7km (113.5 miles) Shildon Mines, Blanchland, Derwent Valley, North Pennines, Northumberland, England, UK
186.8km (116.1 miles) Driggith Mine (Driggeth Mine), Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK
187.3km (116.4 miles) Roughton Gill Mine, Roughton Gill, Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK
190.2km (118.2 miles) Sandwith Mine, Whitehaven, North and Western Region (Cumberland), Cumbria, England, UK
195.2km (121.3 miles) Cattybrook Quarry, Almondsbury, South Gloucestershire (Bristol; Avon), England, UK
201.6km (125.3 miles) Risca Quarry, Risca, Caerphilly (Gwent; Monmouthshire), Wales, UK
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