Brockman Dyke, Marble Bar, East Pilbara Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Brockman Dyke | Dike |
| Marble Bar | - not defined - |
| East Pilbara Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
21° 29' 20'' South , 119° 57' 9'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Marble Bar | 612 (2012) | 41.4km |
| Nullagine | 215 (2014) | 47.5km |
Mindat Locality ID:
251002
Long-form identifier:
mindat:1:2:251002:9
GUID (UUID V4):
c81777a3-e7fc-41cf-a1f0-67d9a23d58da
Located 30 kilometres south-east of Marble Bar.
Discovered in 1998, the dyke strikes for 20 kilometres and is between 1 to 12 metres wide. Thought to be a diamondiferous kimberlite fissure, containing both macro and micro diamonds, spinel and garnet. The deposit is uneconomic at 1 ct/ht.
The first diamond discovery in Western Australia was made in 1895, when a few small stones were found in alluvial gold workings. Some have suggested the Brockman Dyke is the long searched for source of these diamonds. Since 1895 several hundred small diamonds have been found in alluvial gravels in the region.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
2 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:
| ⓘ Diamond Formula: C |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Spinel Formula: MgAl2O4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Diamond | 1.CB.10a | C |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Diamond | C |
| O | Oxygen | |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | ⓘ Spinel | MgAl2O4 |
| Si | Silicon | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Pilbara CratonCraton
- Warakurna Large Igneous ProvinceGeologic Province
- West Australian ElementCraton
Australian PlateTectonic Plate
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References
