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Acheron River, Coalgate, Selwyn District, Canterbury Region, New Zealandi
| Regional Level Types | |
|---|---|
| Acheron River | River |
| Coalgate | Town |
| Selwyn District | District |
| Canterbury Region | Region |
| New Zealand | Country |
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Latitude & Longitude (WGS84):
43° 22' 58'' South , 171° 36' 37'' East
Latitude & Longitude (decimal):
Type:
Kรถppen climate type:
A group of three lacco-liths and three sills varying in composition from dolerite to picroteschenite, outcropping in the Acheron River area of Mid-Canterbury. They are emplaced in coal- measures of Upper Cretaceous age (Coombs, 1960)
The locations of the material is described as in the largest sill on a south facing bank of the river a little downstream from the old coal mine, within the river bed at the mine entrance, and 200-300 yards further north.
It is the first known occurrence of xonolite reported in New Zealand.
It is found in joints, and shatter zones as aggregates of sub-parallel, or radiating asbestiform fibres, forming masses of almost pure xonolite up to 1.5 inches thick, often perpendicular to the vein walls. Weathered xonolite is white, while unweathered material is a delicate pink colour. Small amounts of intergrown calcite is found with it.
Age: Probably late Cretaceous
Wollastonite listed on Mindat appears to be assumed from the formation of the material, rather than present in hand specimens.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
7 valid minerals.
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:
| โ Aegirine Formula: NaFe3+Si2O6 |
| โ Albite var. Anorthoclase Formula: (Na,K)AlSi3O8 |
| โ 'Alkali Feldspar' |
| โ 'Alkali pyroxene' |
| โ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| โ Analcime Formula: Na(AlSi2O6) · H2O |
| โ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| โ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| โ Augite var. Titanium-bearing Augite Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| โ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| โ Calcite Formula: CaCO3 |
| โ 'Fayalite-Forsterite Series' |
| โ Ilmenite Formula: Fe2+TiO3 |
| โ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| โ Wollastonite ? Formula: Ca3(Si3O9) |
| โ Xonotlite Formula: Ca6(Si6O17)(OH)2 |
| โ 'Zeolite Group' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| โ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| Group 5 - Nitrates and Carbonates | |||
| โ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| โ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| โ | var. Titanium-bearing Augite | 9.DA.15 | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| โ | Aegirine | 9.DA.25 | NaFe3+Si2O6 |
| โ | Wollastonite ? | 9.DG.05 | Ca3(Si3O9) |
| โ | Xonotlite | 9.DG.35 | Ca6(Si6O17)(OH)2 |
| โ | Albite var. Anorthoclase | 9.FA.35 | (Na,K)AlSi3O8 |
| โ | 'Zeolite Group' | 9.G0. | |
| โ | Analcime | 9.GB.05 | Na(AlSi2O6) ยท H2O |
| Unclassified | |||
| โ | 'Alkali Feldspar' | - | |
| โ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| โ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| โ | 'Fayalite-Forsterite Series' | - | |
| โ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| โ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| โ | 'Alkali pyroxene' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | โ Analcime | Na(AlSi2O6) · H2O |
| H | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | โ Xonotlite | Ca6(Si6O17)(OH)2 |
| H | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| C | Carbon | |
| C | โ Calcite | CaCO3 |
| O | Oxygen | |
| O | โ Aegirine | NaFe3+Si2O6 |
| O | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | โ Analcime | Na(AlSi2O6) · H2O |
| O | โ Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| O | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | โ Calcite | CaCO3 |
| O | โ Ilmenite | Fe2+TiO3 |
| O | โ Wollastonite | Ca3(Si3O9) |
| O | โ Xonotlite | Ca6(Si6O17)(OH)2 |
| O | โ Fayalite-Forsterite Series | |
| O | โ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| O | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| F | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | โ Aegirine | NaFe3+Si2O6 |
| Na | โ Analcime | Na(AlSi2O6) · H2O |
| Na | โ Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Na | โ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Mg | Magnesium | |
| Mg | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | โ Fayalite-Forsterite Series | |
| Mg | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Al | Aluminium | |
| Al | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | โ Analcime | Na(AlSi2O6) · H2O |
| Al | โ Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Al | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | โ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Si | Silicon | |
| Si | โ Aegirine | NaFe3+Si2O6 |
| Si | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | โ Analcime | Na(AlSi2O6) · H2O |
| Si | โ Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| Si | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | โ Wollastonite | Ca3(Si3O9) |
| Si | โ Xonotlite | Ca6(Si6O17)(OH)2 |
| Si | โ Fayalite-Forsterite Series | |
| Si | โ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| P | Phosphorus | |
| P | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | Chlorine | |
| Cl | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Cl | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | โ Albite var. Anorthoclase | (Na,K)AlSi3O8 |
| K | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ca | Calcium | |
| Ca | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | โ Calcite | CaCO3 |
| Ca | โ Wollastonite | Ca3(Si3O9) |
| Ca | โ Xonotlite | Ca6(Si6O17)(OH)2 |
| Ca | โ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Ca | โ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | โ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ti | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | โ Ilmenite | Fe2+TiO3 |
| Ti | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Fe | Iron | |
| Fe | โ Aegirine | NaFe3+Si2O6 |
| Fe | โ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | โ Ilmenite | Fe2+TiO3 |
| Fe | โ Fayalite-Forsterite Series | |
| Fe | โ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
Other Regions, Features and Areas containing this locality
Australian Plate
- Torlesse TerraneAccretionary Complex
New Zealand
- South IslandIsland
- Southern AlpsMountain Range
Pacific PlateTectonic Plate
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