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Hofeberg basalt quarry, Ostritz, Görlitz District, Saxony, Germanyi
| Regional Level Types | |
|---|---|
| Hofeberg basalt quarry | Quarry (Abandoned) |
| Ostritz | Town |
| Görlitz District | District |
| Saxony | State |
| Germany | Country |
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Latitude & Longitude (WGS84):
51° 2' 55'' North , 14° 56' 39'' East
Latitude & Longitude (decimal):
Type:
Quarry (Abandoned) - last checked 2025
Age:
66.0 to 2.588 Ma
Geologic Time:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ostritz | 2,988 (2015) | 3.9km |
| Schönau-Berzdorf | 1,796 (2015) | 4.5km |
| Bernstadt | 4,046 (2018) | 8.1km |
| Zawidów | 4,364 (2010) | 8.6km |
| Černousy | 322 (2018) | 8.9km |
Other/historical names associated with this locality:
Basaltbruch Hofeberg, Leuba (Ostritz)
Other Languages:
German:
Leuba, Görlitz, Sachsen, Deutschland
Old, abandoned quarry at Hofeberg Hill near Leuba, about 10 km south of Görlitz (Oberlausitz, Saxony).
Tietz, O. & Büchner, J. (2007):
"Twenty-three gem-like zircon megacrysts were sampled directly out of solid basaltic scoria. Such an in-situ abundance is very rare worldwide. The host bedded scoria layers are agglutinated and intercalated by massive basaltic lava flows lacking zircon megacrysts. Apart from the 23 in-situ zircons from the outcrop wall, in summary 195 zircon crystals were separated (2.65 crystals per one kilogram host rock) and classified by zircon-typology. This preliminary study suggests about 6890 zircon crystals exist per cubic metre of scoria. The absence of syenitic xenoliths in the basaltic rocks favours zircon crystallization on the magma chamber walls....The zircon crystals are mostly light to dark yellowish-brown, rarely reddish-brown, greyish-brown or colourless. The prevailing zircon type from the scoria shows a typical honey-like colour similar to that of zircons from placers in northern Bohemia (Ulrych & Uher 1999) and from Saxon Switzerland (Tietz 2003). The zircon crystals are frequently spotted due to presence of numerous cracks. The crystals are mostly transparent, rarely translucent and very rarely non-transparent. In colour and transparency they show a typical gem quality similar to the hyacinth variety. Because of the rounding many crystals have a smooth, fine pitted orange peellike crystal surface. The lustre is conspicuous high (adamantine). A quarter of all studied crystals contain inclusions of other minerals (e.g., hornblende and magnetite),
concentrated in the marginal parts of crystals or show rounded negative casts on the crystal surface. Bubble inclusions and crystal twinning are very rare. ".
The scoria layers are 2–3 m thick while the lava flows
reach up to 12 m thick. The columnar joints of these lava flows in the western part of the quarry show a periclinal structure and in the eastern part are vertical. The volcanic body belong to the Central European Volcanic Province (CEVP) consists of basalt. Preliminary petrographic and geochemical data indicate a basanitic to olivine nephelinitic composition of the lava flows (Büchner et al. 2006).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
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:
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ 'Calcium Amphibole Subgroup' Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ 'Calcium Amphibole Subgroup var. Hornblende' Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ 'Clinopyroxene Subgroup' |
| ⓘ 'Iddingsite' |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Nepheline Formula: Na3K(Al4Si4O16) |
| ⓘ 'Olivine Group' Formula: M2SiO4 |
| ⓘ 'Orthopyroxene Subgroup' |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ 'Zeolite Group' |
| ⓘ Zircon Formula: Zr(SiO4) |
| ⓘ Zircon var. Hyacinth Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | var. Hyacinth | 9.AD.30 | Zr(SiO4) |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Nepheline | 9.FA.05 | Na3K(Al4Si4O16) |
| ⓘ | 'Zeolite Group' | 9.G0. | |
| Unclassified | |||
| ⓘ | 'Calcium Amphibole Subgroup var. Hornblende' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| ⓘ | 'Iddingsite' | - | |
| ⓘ | 'Clinopyroxene Subgroup' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Orthopyroxene Subgroup' | - | |
| ⓘ | 'Olivine Group' | - | M2SiO4 |
| ⓘ | 'Calcium Amphibole Subgroup' | - | AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| H | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| O | Oxygen | |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Nepheline | Na3K(Al4Si4O16) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Zircon var. Hyacinth | Zr(SiO4) |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Olivine Group | M2SiO4 |
| O | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| F | Fluorine | |
| F | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| F | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Al | Aluminium | |
| Al | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Al | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Si | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zircon var. Hyacinth | Zr(SiO4) |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Olivine Group | M2SiO4 |
| Si | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Cl | Chlorine | |
| Cl | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Cl | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Calcium Amphibole Subgroup var. Hornblende | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Calcium Amphibole Subgroup | AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Zr | ⓘ Zircon var. Hyacinth | Zr(SiO4) |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- Saxo-Thuringian BeltOrogenic Belt
EuropeContinent
- Bohemian MassifMassif
- SudetesMountain Range
- Western SudetesMountain Range
- SudetesMountain Range
Germany/Poland
- ⭔OberlausitzRegion
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