Colcerrow Quarry (Gready Quarry), Lanlivery, St Austell District, Cornwall, England, UK
|Latitude & Longitude (WGS84):||50° 23' 11'' North , 4° 43' 30'' West|
|Latitude & Longitude (decimal):||50.38639,-4.72500|
|UK National Grid Reference:||SX063577|
|Other regions containing this locality:||Devon and Cornwall metalliferous mining district, England, UK|
Abandoned quarry in coarse-grained biotite granite. The site is now heavily overgrown and part of it is occupied by farm buildings.
8 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
|Geologic Time||Rocks, Minerals and Events|
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Permian - Carboniferous|
252.17 - 358.9 Ma
|Unnamed Igneous Intrusion, Carboniferous To Permian|
Age: Paleozoic (252.17 - 358.9 Ma)
Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. 
Bowman, H.L. (1911) On the occurrence of bertrandite at the Cheesewring Quarry, near Liskeard, Cornwall. Mineralogical Magazine, vol. 16, n° 73, 47-50.
Kingsbury, A.W.G. (1958) Two beryllium minerals new to Britain: euclase and herderite. Mineralogical Magazine, vol. 31, n° 240, 815-817.
Braithwaite, R.S.W., and Cooper, B.V. (1982) Childrenite in South-West England. Mineralogical Magazine, vol. 46, n° 338, 119-126.