Hellvik Quarry, Hellvik, Eigersund, Rogaland, Norwayi
| Regional Level Types | |
|---|---|
| Hellvik Quarry | Quarry (Active) |
| Hellvik | Village |
| Eigersund | Municipality |
| Rogaland | County |
| Norway | Country |
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Latitude & Longitude (WGS84):
58° 29' 47'' North , 5° 54' 41'' East
Latitude & Longitude (decimal):
Locality type:
Quarry (Active) - last checked 2018
Age:
1000 to 541 ± 1.0 Ma
Geologic Time:
Reference for age:
Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 302, Hellvik
Köppen climate type:
Nearest Clubs:
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Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Sandnes Steinklubb | Sandnes | 42km |
Other Languages:
Norwegian:
Hellvik steinbrudd, Hellvik, Eigersund, Rogaland, Norge
A quarry on Rudlå-fjellet on the western side of Rv 44. This quarry and the Hegrestad quarry have a total annual production of 300.000 tons of white anorthosite. The produce is used as an additive to ceramic tiles and as crushed stone for various purposes. The quarry is operated by Hellviksplitt AS, whereas the quarry on the other side of the road is operated by KS Edelsplitt. Both companies have a shared sales organization, KS Norwegian Edelsplitt. The quarries were opened in the 1960's and are still (2015) in operation and have large remaining reserves (NGU database).
The rock is a white anorthosite with inclusions of a green and white spotted rock of undefined origin, but probably contains epidote and prehnite. The white colour is due to hydrothermal alteration of the anorthosite. The white anorthosite constitutes 80-85% of the rock.
These deposits should not be confused with the deposits of labradorescent anorthosite a few km further west.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Epidote Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 302, Hellvik |
| ⓘ 'Mica Group' Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 302, Hellvik |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 302, Hellvik |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Epidote | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| O | Oxygen | |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | Silicon | |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Fe | Iron | |
| Fe | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Heldal, T. (1995): Undersøkelser av anortosittforekomster ved Hellvik, Rogaland. Norges geologiske undersøkelse, NGU-report No.95.055, 36p.
Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 302, Hellvik
Other Databases
| Link to Geological Survey of Norway: | 23812 |
|---|
External Links
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