Delegate meteorite, Delegate, Wellesley Co., New South Wales, Australiai
| Regional Level Types | |
|---|---|
| Delegate meteorite | Meteorite Fall Location |
| Delegate | Town |
| Wellesley Co. | County |
| New South Wales | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
37° 0' South , 149° 2' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Craigie | 170 (2018) | 9.4km |
| Delegate | 306 (2016) | 9.6km |
| Bombala | 1,205 (2015) | 20.5km |
| Bibbenluke | 179 (2015) | 30.6km |
| Cathcart | 267 (2013) | 34.9km |
Iron meteorite, Octahedrite (IIIAB, Om)
Find, 1904; 27.7 kg
A somewhat weathered Fe-rich mass [~9.5% Ni] was found near a gully off Sawpit Creek near the village of Delegate. The meteorite is a somewhat normal type IIIAB iron with a distinctive Widmanstätten structure accompanied by ~40 vol % plessite plus accessory schreibersite and troilite. Brecciated schreibersite is present as vermicular bodies, Brezina lamellae, and rhabdites. Troilite is a minor constituent present mostly in phosphides, but one very unusual troilite inclusion is accompanied by a number of minor phases. The geochemistry is somewhat anomalous as the iridium content is higher than normal for IIIAB irons. The kamacite has been hardened by severe pre-terrestrial shock. Post-terrestrial weathering has produced some iron oxides as well as cream-colored pentlandite and other sulfides.
The rather long cosmic ray exposure age of ~750-800 Ma is similar to that of many irons. Delegate is one of 299 irons classified as a IIIAB iron. The main mass is held at the Australian Museum in Sydney.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
10 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 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Iron Formula: Fe |
| ⓘ Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ Iron var. Martensite Formula: Fe |
| ⓘ Isocubanite Formula: CuFe2S3 Description: Isocubanite was labelled as 'chalcopyrrhotite' in a number of early reports |
| ⓘ Mackinawite Formula: FeS |
| ⓘ Pentlandite Formula: (NixFey)Σ9S8 Description: Weatherate found in rims and cracks |
| ⓘ 'Plessite' |
| ⓘ Schreibersite Formula: (Fe,Ni)3P Description: As vermicular bodies, Brezina lamellae, and rhabdites. Brecciated but monocrystalline. |
| ⓘ Taenite Formula: (Fe,Ni) |
| ⓘ Troilite Formula: FeS |
| ⓘ Valleriite Formula: (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | var. Martensite | 1.AE.05 | Fe |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Isocubanite | 2.CB.55b | CuFe2S3 |
| ⓘ | Troilite | 2.CC.10 | FeS |
| ⓘ | Mackinawite | 2.CC.25 | FeS |
| ⓘ | Alabandite | 2.CD.10 | MnS |
| ⓘ | Valleriite | 2.FD.30 | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| Unclassified | |||
| ⓘ | 'Plessite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| O | Oxygen | |
| O | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| Mg | Magnesium | |
| Mg | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| Al | Aluminium | |
| Al | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| P | Phosphorus | |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Alabandite | MnS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Isocubanite | CuFe2S3 |
| S | ⓘ Mackinawite | FeS |
| S | ⓘ Pentlandite | (NixFey)Σ9S8 |
| S | ⓘ Troilite | FeS |
| S | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| Mn | Manganese | |
| Mn | ⓘ Alabandite | MnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Iron | Fe |
| Fe | ⓘ Isocubanite | CuFe2S3 |
| Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Mackinawite | FeS |
| Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
| Fe | ⓘ Iron var. Martensite | Fe |
| Ni | Nickel | |
| Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Taenite | (Fe,Ni) |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Isocubanite | CuFe2S3 |
| Cu | ⓘ Valleriite | (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6 |
Other Regions, Features and Areas containing this locality
Australia
- Great Dividing RangeMountain Range
- Lachlan OrogenOrogen
- Kuark ZoneZone (Tectonic)
Australian PlateTectonic Plate
- Macquarie ArcVolcanic Arc
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