Mount Ragged, Cape Arid National Park, Esperance Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Mount Ragged | National Park |
| Cape Arid National Park | - not defined - |
| Esperance Shire | Shire |
| Western Australia | State |
| Australia | Country |
| Latitude & Longitude (WGS84): | 33° 27' 7'' South , 123° 28' 19'' East |
|---|---|
| Latitude & Longitude (decimal): | -33.45198,123.47210 |
| GeoHash: | G#: qdpc9wm8h |
| Locality type: | National Park - last checked 2018 |
| Deposit first discovered: | 1960 |
| KΓΆppen climate type: | Cfb : Temperate oceanic climate |
The Mn-bearing variety of andalusite (viridine) was described from the south-western flank of Mt. Ragged by Rex Prider in a 1960 paper. The mineral was green with strong pleochroism (yellow-green, emerald-green, golden-yellow) and occurred in Archaean quartz-muscovite schists and quartzites, as layers to 5 mm thick and as sparse porphyroblasts to 2 cm. The viridine contained abundant poikiloblastic inclusions of quartz and iron oxides. Associated accessory minerals were magnetite, ilmenite, rutile and a pale-blue isotropic phase with RI = 1.789, tentatively identified as zincian spinel (gahnospinel). Chemical analyses of two viridine separates yielded Mn2O3 contents of 3.67 and 5.05 wt.%
The discovery of this mineral at Mt Ragged and in the Mica Hills (24 km south of Mt Ragged) was attributed to Mr. H.W. Wheeler of the Kalgoorlie School of Mines.
Regions containing this locality
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| β Andalusite Formula: Al2(SiO4)O |
| β Andalusite var: Viridine Formula: (Al,Mn3+)2SiO4O |
| β Ilmenite Formula: Fe2+TiO3 |
| β Magnetite Formula: Fe2+Fe3+2O4 |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Quartz Formula: SiO2 |
| β Rutile Formula: TiO2 |
| β Spinel Formula: MgAl2O4 |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| β | Quartz | 4.DA.05 | SiO2 |
| β | Rutile | 4.DB.05 | TiO2 |
| β | Spinel | 4.BB.05 | MgAl2O4 |
| Group 9 - Silicates | |||
| β | Andalusite | 9.AF.10 | Al2(SiO4)O |
| β | var: Viridine | 9.AF.10 | (Al,Mn3+)2SiO4O |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
List of minerals arranged by Dana 8th Edition classification
| Group 4 - SIMPLE OXIDES | |||
|---|---|---|---|
| A2X3 | |||
| β | Ilmenite | 4.3.5.1 | Fe2+TiO3 |
| AX2 | |||
| β | Rutile | 4.4.1.1 | TiO2 |
| Group 7 - MULTIPLE OXIDES | |||
| AB2X4 | |||
| β | Magnetite | 7.2.2.3 | Fe2+Fe3+2O4 |
| β | Spinel | 7.2.1.1 | MgAl2O4 |
| Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O | |||
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination | |||
| β | Andalusite | 52.2.2b.1 | Al2(SiO4)O |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 layers | |||
| β | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| β | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Mixtures, etc. | |||
| β | Andalusite var: Viridine | - | (Al,Mn3+)2SiO4O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | β Andalusite (var: Viridine) | (Al,Mn3+)2SiO4O |
| O | β Ilmenite | Fe2+TiO3 |
| O | β Rutile | TiO2 |
| O | β Spinel | MgAl2O4 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Quartz | SiO2 |
| O | β Andalusite | Al2(SiO4)O |
| O | β Magnetite | Fe2+Fe23+O4 |
| Mg | Magnesium | |
| Mg | β Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | β Andalusite (var: Viridine) | (Al,Mn3+)2SiO4O |
| Al | β Spinel | MgAl2O4 |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Andalusite | Al2(SiO4)O |
| Si | Silicon | |
| Si | β Andalusite (var: Viridine) | (Al,Mn3+)2SiO4O |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Quartz | SiO2 |
| Si | β Andalusite | Al2(SiO4)O |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ti | Titanium | |
| Ti | β Ilmenite | Fe2+TiO3 |
| Ti | β Rutile | TiO2 |
| Mn | Manganese | |
| Mn | β Andalusite (var: Viridine) | (Al,Mn3+)2SiO4O |
| Fe | Iron | |
| Fe | β Ilmenite | Fe2+TiO3 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Stenian 1000 - 1200 Ma ID: 3184741 | Mesoproterozoic intrusive rocks Age: Stenian (1000 - 1200 Ma) Comments: Albany-Fraser Orogen Lithology: Intrusive igneous rocks Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
| Mesoproterozoic 1000 - 1600 Ma ID: 791723 | Mount Ragged Formation Age: Mesoproterozoic (1000 - 1600 Ma) Stratigraphic Name: Mount Ragged Formation Description: Quartzite, quartz-muscovite schist, quartz pebble metaconglomerate; in places contains biotite, garnet, andalusite, viridine, or sillimanite Comments: metasedimentary siliciclastic; sedimentary siliciclastic; synthesis of multiple published descriptions Lithology: Metasedimentary siliciclastic; sedimentary siliciclastic Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)
