Yilmia meteorite, Kambalda, Coolgardie Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Yilmia meteorite | Meteorite Fall Location |
| Kambalda | Town |
| Coolgardie Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
31° 11' 30'' South , 121° 32' 0'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Stoneville | 2,841 (2016) | 42.4km |
| Coolgardie | 802 (2016) | 44.1km |
| Boulder | 5,178 (2017) | 45.7km |
| Williamstown | 161 (2018) | 49.3km |
| Kalgoorlie | 31,107 (2014) | 49.8km |
Enstatite Chondrite, low-iron [EL6; S2]
1969 find, 40 kg, weathered
A crater with numerous fragments around a depression and a second, larger mass found 2 years later 400 meters away provided Australian geologists with the second largest known EL ( low-iron) Enstatite chondrite. While weathering is an issue, the uneven nature of the weathering has permitted a rather complete description of the meteorite including some detailed descriptions of very reduced phases found mostly in the Enstatite meteorite clan. Enstatite (mostly in well-defined Enstatite-rich chondrules, admixed with minor Silica) constitute ~ 60 wt.% of the meteorite. The other important components are Metal (~20 wt.% ), Plagioclase (~9 wt.%), and Troilite (~ 6 wt.% ). According to Buseck and Holdsworth (1972) the meteorite is ‘unique’ among Enstatite Chondrites in complexity, abundance of Taenite, and diversity of zincian materials and minor sulfides.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
11 valid minerals.
Meteorite/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:
| ⓘ Alabandite Formula: MnS Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Daubréelite Formula: Fe2+Cr3+2S4 Description: Zincian Daubréelite Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Enstatite Formula: Mg2Si2O6 Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Graphite Formula: C Description: rare Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972); Brearley, A. J. & Jones, R. H. (1998): Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998) |
| ⓘ Iron Formula: Fe Description: Si-rich, characteristic of all Enstatite chondrites Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Iron var. Kamacite Formula: (Fe,Ni) Description: Si-rich, characteristic of all Enstatite chondrites Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Oldhamite Formula: (Ca,Mg)S Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Osbornite Formula: TiN Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Description: Plagioclase is highly albitic (Ab 80 An 16 Or 4) Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Schreibersite Formula: (Fe,Ni)3P Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ 'Silica' Description: An unidentified siica phase(s) is found with plagioclase and enstatite Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972); Brearley, A. J. & Jones, R. H. (1998): Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998) |
| ⓘ Sinoite Formula: Si2N2O Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Taenite Formula: (Fe,Ni) Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
| ⓘ Troilite Formula: FeS Reference: Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Osbornite | 1.BC.15 | TiN |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| ⓘ | Sinoite | 1.DB.10 | Si2N2O |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Alabandite | 2.CD.10 | MnS |
| ⓘ | Daubréelite | 2.DA.05 | Fe2+Cr3+2S4 |
| ⓘ | Oldhamite | 2.CD.10 | (Ca,Mg)S |
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 9 - Silicates | |||
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Silica' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Graphite | C |
| N | Nitrogen | |
| N | ⓘ Osbornite | TiN |
| N | ⓘ Sinoite | Si2N2O |
| O | Oxygen | |
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Sinoite | Si2N2O |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Oldhamite | (Ca,Mg)S |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Sinoite | Si2N2O |
| P | Phosphorus | |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Alabandite | MnS |
| S | ⓘ Daubréelite | Fe2+Cr23+S4 |
| S | ⓘ Oldhamite | (Ca,Mg)S |
| S | ⓘ Troilite | FeS |
| Ca | Calcium | |
| Ca | ⓘ Oldhamite | (Ca,Mg)S |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Osbornite | TiN |
| Cr | Chromium | |
| Cr | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Mn | Manganese | |
| Mn | ⓘ Alabandite | MnS |
| Fe | Iron | |
| Fe | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Iron | Fe |
| Ni | Nickel | |
| Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Taenite | (Fe,Ni) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Clarke, R. S., Jr. [Ed.] (1972) Meteoritical Bulletin, no. 51, Meteoritics 7 (2): 215-232. (Jun 1972)
Buseck, P. R. & Holdsworth, E. F. (1972) Mineralogy and Petrology of the Yilmia Enstatite Chondrite, Meteoritics 7 (4): p. 429. (Dec 1972)
Buseck, P. R. & Holdsworth, E. F. (1973) A new enstatite chondrite from Yilmia, Western Australia. Meteoritics 8(1): p. 23 (March 1973)
Brearley, A. J. & Jones, R. H. (1998): Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA.
Grady, M. M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Kambalda Nickel Metallogenic ProvinceGeologic Province
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
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