Roche Rock, Trezaise (Tresayes), Roche, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Roche Rock | Rock Unit |
| Trezaise (Tresayes) | - not defined - |
| Roche | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 24' 7'' North , 4° 49' 41'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW991596
Type:
Köppen climate type:
Mindat Locality ID:
1225
Long-form identifier:
mindat:1:2:1225:9
GUID (UUID V4):
f46e6e3e-2f06-465c-95ae-81bc255ea845
A local landmark. Uniquely for the area, the rock is a mix of schorl and quartz rather than granite. The chapel on top of the rock, dedicated to St Michael, dates from 1401.
The rock features in Arthurian legend and is said to have been the dwelling of the hermit Ogrin who sheltered the lovers Tristram, a knight of the round table, and Isolde from the wrath of the betrayed King Mark, the husband of Isolde and uncle of Tristram.
No collecting is allowed!
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | Oxygen | |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | Sodium | |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | Aluminium | |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | Iron | |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
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| Cisuralian |
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Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- England
- Cornwall
- St Austell Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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Roche Rock, Trezaise, Roche, Cornwall, England, UK