Log In
Higashi-Akaishi dunite, Higashi-Akaishi Ultrahigh-Pressure Peridotite Complex, Ehime Prefecture, Japani
| Regional Level Types | |
|---|---|
| Higashi-Akaishi dunite | Complex |
| Higashi-Akaishi Ultrahigh-Pressure Peridotite Complex | Complex |
| Ehime Prefecture | Prefecture |
| Japan | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude:
33° North , 132° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~103km
Type:
5km long dunite body, mainly massive dunite, serpentinized along the margins, and including some thin pyroxenite layers, eclogite lenses, and chromite veins. (See also under "Akaishi mine".)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
12 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:
| ⓘ Awaruite Formula: Ni3Fe |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chromio-pargasite Formula: NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 References: Nishio-Hamane, Daisuke, Ohnishi, Masayuki, Minakawa, Tetsuo, Yamaura, Jun-ichi, Saito, Shohei, Kadota, Ryo (2012) Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: The first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 107 (1) 1-7 doi:10.2465/jmps.110715 |
| ⓘ Chromite Formula: Fe2+Cr3+2O4 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Diopside var. Chromium-bearing Diopside Formula: Ca(Mg,Cr)Si2O6 |
| ⓘ Forsterite Formula: Mg2SiO4 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Heazlewoodite Formula: Ni3S2 |
| ⓘ Irarsite Formula: (Ir,Ru,Rh,Pt)AsS |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Nickel Formula: Ni |
| ⓘ Orcelite Formula: Ni5-xAs2, x ~ 0.25 |
| ⓘ Pentlandite Formula: (NixFey)Σ9S8 |
| ⓘ 'Pyroxene Group' Formula: ADSi2O6 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Nickel | 1.AA.05 | Ni |
| ⓘ | Awaruite | 1.AE.20 | Ni3Fe |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Orcelite | 2.AB.10 | Ni5-xAs2, x ~ 0.25 |
| ⓘ | Heazlewoodite | 2.BB.05 | Ni3S2 |
| ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Irarsite | 2.EB.25 | (Ir,Ru,Rh,Pt)AsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| ⓘ | Diopside var. Chromium-bearing Diopside | 9.DA.15 | Ca(Mg,Cr)Si2O6 |
| ⓘ | 9.DA.15 | CaMgSi2O6 | |
| ⓘ | Chromio-pargasite | 9.DE.15 | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Unclassified | |||
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| H | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Diopside var. Chromium-bearing Diopside | Ca(Mg,Cr)Si2O6 |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Forsterite | Mg2SiO4 |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Na | Sodium | |
| Na | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Diopside var. Chromium-bearing Diopside | Ca(Mg,Cr)Si2O6 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Mg | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Si | Silicon | |
| Si | ⓘ Diopside var. Chromium-bearing Diopside | Ca(Mg,Cr)Si2O6 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Forsterite | Mg2SiO4 |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| S | Sulfur | |
| S | ⓘ Heazlewoodite | Ni3S2 |
| S | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
| S | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside var. Chromium-bearing Diopside | Ca(Mg,Cr)Si2O6 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Cr | Chromium | |
| Cr | ⓘ Diopside var. Chromium-bearing Diopside | Ca(Mg,Cr)Si2O6 |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | ⓘ Chromio-pargasite | NaCa2(Mg4Cr)(Si6Al2)O22(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Awaruite | Ni3Fe |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Ni | Nickel | |
| Ni | ⓘ Awaruite | Ni3Fe |
| Ni | ⓘ Heazlewoodite | Ni3S2 |
| Ni | ⓘ Native Nickel | Ni |
| Ni | ⓘ Orcelite | Ni5-xAs2, x ~ 0.25 |
| Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Cu | Copper | |
| Cu | ⓘ Native Copper | Cu |
| As | Arsenic | |
| As | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
| As | ⓘ Orcelite | Ni5-xAs2, x ~ 0.25 |
| Ru | Ruthenium | |
| Ru | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
| Rh | Rhodium | |
| Rh | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
| Ir | Iridium | |
| Ir | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
| Pt | Platinum | |
| Pt | ⓘ Irarsite | (Ir,Ru,Rh,Pt)AsS |
Other Regions, Features and Areas containing this locality
Eurasian Plate
- Southern Japan ForearcAccretionary Complex
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Higashi-Akaishi dunite, Higashi-Akaishi Ultrahigh-Pressure Peridotite Complex, Ehime Prefecture, Japan