Bencubbin meteorite, Bencubbin, Mount Marshall Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Bencubbin meteorite | Meteorite Fall Location |
| Bencubbin | - not defined - |
| Mount Marshall Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
30° 45' South , 117° 47' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
This meteorite was found in 1930, almost completely buried in newly cleared land, on Holland and Breakill's wheat farm (Block 2557), 15 kilometres north-west of Bencubbin.
It is pyramid-shaped, 30cm x 20cm at its base, 18cm x 13cm at the top, 23cm deep, 54kg and a specific gravity of 5.32.
The surface was covered completely by an oxidised layer, which also penetrated the meteorite along the surfaces of metallic masses. Under the layer, its colour is greyish to brownish black, with regular enstatite, coloured greyish white as single crystals 5-10mm in diameter and often multiply twinned. There was also dark olive coloured olivine crystals the same size as the enstatite.
Mineral composition is nickel iron 47.8%, troilite 1.6%, enstatite 23.1%, olivine 20.2%, anorthite 1% and chromite 0.2%.
The meteorite has been classified as a stony-iron or mesosiderite,but eventually became a Carbonaceous Chondrite Prototype (CBa) largely because of its silicate composition and its very unusual oxygen isotope ratios.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
17 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:
| ⓘ Anhydrite Formula: CaSO4 |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chromite Formula: Fe2+Cr3+2O4 |
| ⓘ Clinoenstatite Formula: MgSiO3 |
| ⓘ Daubréelite Formula: Fe2+Cr3+2S4 |
| ⓘ Diamond Formula: C |
| ⓘ Enstatite Formula: Mg2Si2O6 |
| ⓘ 'Fayalite-Forsterite Series' |
| ⓘ Ferrihydrite Formula: Fe3+10O14(OH)2 |
| ⓘ Graphite Formula: C |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ 'Melilite Group' Formula: Ca2M(XSiO7) |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Spinel Formula: MgAl2O4 |
| ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Diamond | 1.CB.10a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Troilite | 2.CC.10 | FeS |
| ⓘ | Daubréelite | 2.DA.05 | Fe2+Cr3+2S4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ferrihydrite | 4.FE.35 | Fe3+10O14(OH)2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite | 7.AD.30 | CaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | Clinoenstatite | 9.DA.10 | MgSiO3 |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| Unclassified | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Melilite Group' | - | Ca2M(XSiO7) |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
- West Australian Craton
- Western Yilgarn CratonCraton
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Bencubbin meteorite, Bencubbin, Mount Marshall Shire, Western Australia, Australia