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Chromdiopside gabbroic granulite layer, Horoman peridotite body, Samani-cho, Samani-gun, Hidaka Subprefecture, Hokkaidō, Japani
Regional Level Types
Chromdiopside gabbroic granulite layer- not defined -
Horoman peridotite body- not defined -
Samani-cho- not defined -
Samani-gun- not defined -
Hidaka SubprefectureSubprefecture
HokkaidōPrefecture
JapanCountry

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Key
Latitude & Longitude (WGS84):
42° 4' 41'' North , 143° 2' 31'' East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~0km



Type II layer : Chromdiopside mafic gabbroic granulites (plagioclase-rich cumulates of the upper mantle) (age : 830 Ma).
These mafic layers (mm to m thickness scale) are parallel to foliation plane of the peridotites.
The assemblages are due to subsolidus reaction.

Regions containing this locality

AsiaContinent
Okhotsk PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


5 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
'Clinopyroxene Subgroup'
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Diopside
Formula: CaMgSi2O6
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Diopside var: Chromian Diopside
Formula: Ca(Mg,Cr)Si2O6
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Forsterite
Formula: Mg2SiO4
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
'Orthopyroxene Subgroup'
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
Spinel
Formula: MgAl2O4
Colour: Green.
Reference: E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Spinel4.BB.05MgAl2O4
Group 9 - Silicates
Diopside9.DA.15CaMgSi2O6
var: Chromian Diopside9.DA.15Ca(Mg,Cr)Si2O6
Forsterite9.AC.05Mg2SiO4
Pargasite9.DE.15{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
'Orthopyroxene Subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Pargasite66.1.3a.12{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Clinopyroxene Subgroup'-
Diopside
var: Chromian Diopside
-Ca(Mg,Cr)Si2O6
'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
H Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
OOxygen
O ForsteriteMg2SiO4
O Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
O SpinelMgAl2O4
O MagnetiteFe2+Fe23+O4
O Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
O DiopsideCaMgSi2O6
NaSodium
Na Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
MgMagnesium
Mg ForsteriteMg2SiO4
Mg Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Mg SpinelMgAl2O4
Mg Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Mg DiopsideCaMgSi2O6
AlAluminium
Al Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Al SpinelMgAl2O4
SiSilicon
Si ForsteriteMg2SiO4
Si Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Si Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Si DiopsideCaMgSi2O6
CaCalcium
Ca Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Ca Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Ca DiopsideCaMgSi2O6
CrChromium
Cr Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
FeIron
Fe MagnetiteFe2+Fe23+O4

References

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E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.


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