Murramunda Community (Warrawanda Creek), Meekatharra Shire, Western Australia, Australiai
Regional Level Types | |
---|---|
Murramunda Community (Warrawanda Creek) | Community |
Meekatharra Shire | Shire |
Western Australia | State |
Australia | Country |
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Latitude & Longitude (WGS84):
23° 44' 30'' South , 119° 54' 0'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
This location is unconfirmed. The Mindat co-ordinates are only a suggestion, located at the head-waters of the Warrawanda Creek, and needs on the ground confirmation.
The material when rarely available is marketed as Murramunda chrysoprase, however Murramunda on maps relates to several locations east and south-east of the Coobina chromite mine, and is not near the creek. These locations include a ruined historic telegraph station, a non existent aboriginal community, and outstation at widely spaced intervals along the Jigalong Mission Road. There is also a remote spring south of the last location. All the locations also go by the name Mundiwindi.
The reference Fetherston states the deposit is near the Warrawanda Creek, a north-south normally dry watercourse between the Great Northern Highway and the Coobina chromite mine, heading north and to the east of the Capricorn Roadhouse. It is not near the Murramunda locations. Fetherston does not locate the deposit beyond near the 40 kilometre long creek.
Chrysoprase is found at the contact of the Sylvania Inlier serpentinites and granite, the deposit a few tens of metres thick and about 160 metres long. Chrysoprase occurs as a vein network in granite, or as an irregular lens in serpentinite. The best quality chrysoprase at the locality is a homogeneous bright green colour. Kerolite is also present in small clay filled cavities within the chrysoprase. The species also occurs as cotton like aggregates of very fine crystals at the boundaries and within quartz crystals within the chrysoprase.
A local specimen dealer has mined it in the past, and has been sold at Tuscon as tumbled bluey green material (at least based on a 2016 photograph). A photograph of the site shows a small pit on a low hill.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ 'Chrysoprase' Reference: Outback Mining Company; Fetherston, J. M., Stocklmayer, S. M. and Stocklmayer, V. C. (2013): Gemstones of Western Australia. Mineral Resources Bulletin 25, Geological Survey of Western Australia, Perth, Australia, 306 pp. |
ⓘ 'Kerolite' Formula: (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) Reference: Fetherston, J. M., Stocklmayer, S. M. and Stocklmayer, V. C. (2013): Gemstones of Western Australia. Mineral Resources Bulletin 25, Geological Survey of Western Australia, Perth, Australia, 306 pp. |
ⓘ Quartz Formula: SiO2 Reference: Fetherston, J. M., Stocklmayer, S. M. and Stocklmayer, V. C. (2013): Gemstones of Western Australia. Mineral Resources Bulletin 25, Geological Survey of Western Australia, Perth, Australia, 306 pp. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
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ⓘ | Quartz | 4.DA.05 | SiO2 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Chrysoprase' | - | |
ⓘ | 'Kerolite' | - | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Kerolite | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
O | Oxygen | |
O | ⓘ Kerolite | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
O | ⓘ Quartz | SiO2 |
Mg | Magnesium | |
Mg | ⓘ Kerolite | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
Si | Silicon | |
Si | ⓘ Kerolite | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
Si | ⓘ Quartz | SiO2 |
Ni | Nickel | |
Ni | ⓘ Kerolite | (Mg,Ni)3Si4O10(OH)2 · nH2O (n ~ 1) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Fetherston, J. M., Stocklmayer, S. M. and Stocklmayer, V. C. (2013): Gemstones of Western Australia. Mineral Resources Bulletin 25, Geological Survey of Western Australia, Perth, Australia, 306 pp.
External Links
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Pilbara CratonCraton
- Sylvania DomeDome
- Warakurna Large Igneous ProvinceGeologic Province
- West Australian ElementCraton
- Pilbara CratonCraton
Australian PlateTectonic Plate
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Murramunda Community, Meekatharra Shire, Western Australia, Australia