White Rock Quarry, Horsnell Gully, South Mt Lofty Ranges (Adelaide Hills), Mt Lofty Ranges, South Australia, Australiai
| Regional Level Types | |
|---|---|
| White Rock Quarry | Quarry |
| Horsnell Gully | Gully |
| South Mt Lofty Ranges (Adelaide Hills) | Mountain |
| Mt Lofty Ranges | Mountain |
| South Australia | State |
| Australia | Country |
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Key
Latitude & Longitude (WGS84):
34° 55' 31'' South , 138° 42' 30'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Norton Summit | 319 (2011) | 1.5km |
| Adelaide Hills | 60,394 (2013) | 1.6km |
| Wattle Park | 1,830 (2015) | 3.0km |
| Ashton | 481 (2011) | 3.1km |
| Kensington Gardens | 2,508 (2015) | 4.3km |
The quarry lies in the Stoneyfell Quartzite Group, which is in turn part of the Adelaide Geosyncline. It is believed, to have formed during the late Proterozoic thru to the end of the Cambrian (approx 900-500 million years ago).
The quarry itself is well known for its large clear crystals of quartz, showing many different forms, from single crystals thru to multiple crystal groups. It is especially well known for its spectacular ‘Japan Law’ twinned specimens. It is also known for producing some of the largest 'totally clear' crystals in Australia.
The South Australian Museum has dedicated an entire display case to the specimens of White Rock Quarry. It is quite surprising and somewhat upsetting to see that we only have 5 specimens currently (as of 6th April, 2012), showing here on Mindat! I know many collectors that have numerous specimens from this locality, all of which are great examples of this locality.
All access and collecting is now prohibited; mainly because of people sneaking into the quarry to collect without permission.
Located 10km east of Adelaide.
Select Mineral List Type
Standard Detailed Gallery Strunz Dana Chemical ElementsDetailed Mineral List:
ⓘ Quartz Formula: SiO2 |
ⓘ Quartz var: Formula: SiO2 |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var: Rock Crystal | 4.DA.05 | SiO2 |
List of minerals arranged by Dana 8th Edition classification
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
|---|---|---|---|
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | var: Rock Crystal | - | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz (var: Rock Crystal) | SiO2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz (var: Rock Crystal) | SiO2 |
| Si | ⓘ Quartz | SiO2 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Ludbrook, N. H., 1980 , A guide to the geology and mineral resources of South Australia , Govternment Printer, Adelaide.
Noble, R.J., Just, J, & Johnson, J. E., 1983 , Catalogue of South Australian minerals : 1983 , Dept. of Mines and Energy, South Australia, Adelaide.
Other Regions, Features and Areas containing this locality
Australian PlateTectonic Plate
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White Rock Quarry, Horsnell Gully, South Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia