Slåsholmen, Hellvik, Eigersund, Rogaland, Norwayi
| Regional Level Types | |
|---|---|
| Slåsholmen | Exploration Area |
| Hellvik | Village |
| Eigersund | Municipality |
| Rogaland | County |
| Norway | Country |
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Latitude & Longitude (WGS84):
58° 28' 11'' North , 5° 54' 12'' East
Latitude & Longitude (decimal):
Locality type:
Age:
2500 to 541 ± 1.0 Ma
Geologic Time:
Reference for age:
Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Sl
Köppen climate type:
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Sandnes Steinklubb | Sandnes | 45km |
Other Languages:
Norwegian:
Slåsholmen, Hellvik, Eigersund, Rogaland, Norge
The locality consists of several small hills of labradorescenct anorthosite of very good quality with intermittent zones of poorer play of colours.
The localities for anorthosite with labradorite showing schiller effect (labradorescence) is located both in the municipalities of Hå and Eigersund. There are currently (2015) two active quarries for labradorescenct anorthosite for ornamental use, the Krokavatnet Southeast in Eigersund, and Sirevåg in Hå. The area is extensively mapped and several localities have been identified.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral 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:
| ⓘ Anorthite Formula: Ca(Al2Si2O8) Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Slåsholmen. |
| ⓘ Anorthite var. Labradorite Formula: (Ca,Na)[Al(Al,Si)Si2O8] Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Slåsholmen. |
| ⓘ 'Orthopyroxene Subgroup' Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Slåsholmen. |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Reference: Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Slåsholmen. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| ⓘ | var. Labradorite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Orthopyroxene Subgroup' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| O | ⓘ Anorthite | Ca(Al2Si2O8) |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Al | ⓘ Anorthite | Ca(Al2Si2O8) |
| Si | Silicon | |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Si | ⓘ Anorthite | Ca(Al2Si2O8) |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1101 - 607, Slåsholmen (Updated 28.mai.2017).
Other Databases
| Link to Geological Survey of Norway: | 14697 |
|---|
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