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Gabbroic troctolite layer, Horoman peridotite body, Samani-cho, Samani District, Hidaka Subprefecture, Hokkaidō Prefecture, Japani
Regional Level Types
Gabbroic troctolite layer- not defined -
Horoman peridotite body- not defined -
Samani-cho- not defined -
Samani DistrictDistrict
Hidaka SubprefectureSubprefecture
Hokkaidō PrefecturePrefecture
JapanCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
42° North , 143° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~17km
Mindat Locality ID:
69356
Long-form identifier:
mindat:1:2:69356:6
GUID (UUID V4):
a0663d64-8128-41ac-b2bd-a993382a1825



Mafic layer in peridotite.
Corundum-bearing type II mafic HP gabbroic-troctolitic rock (mantle residue : olivine-plagioclase-clinopyroxene cumulate / P< 1.0 GPa).
Corundum : P > 1.5 GPa (posterior to cumulate formation).


Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 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 Diagram

Detailed Mineral List:

Anorthite
Formula: Ca(Al2Si2O8)
Description: Exhumation of peridotite : corundum + clinopyroxene --> Plagioclase.
'Clinopyroxene Subgroup'
Corundum
Formula: Al2O3
Description: Exhumation of peridotite : corundum + clinopyroxene --> Plagioclase.
Forsterite
Formula: Mg2SiO4
Spinel
Formula: MgAl2O4
Description: Al-spinel without Cr.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Spinel4.BB.05MgAl2O4
Corundum4.CB.05Al2O3
Group 9 - Silicates
Forsterite9.AC.05Mg2SiO4
Anorthite9.FA.35Ca(Al2Si2O8)
Unclassified
'Clinopyroxene Subgroup'-

List of minerals for each chemical element

OOxygen
O AnorthiteCa(Al2Si2O8)
O CorundumAl2O3
O ForsteriteMg2SiO4
O SpinelMgAl2O4
MgMagnesium
Mg ForsteriteMg2SiO4
Mg SpinelMgAl2O4
AlAluminium
Al AnorthiteCa(Al2Si2O8)
Al CorundumAl2O3
Al SpinelMgAl2O4
SiSilicon
Si AnorthiteCa(Al2Si2O8)
Si ForsteriteMg2SiO4
CaCalcium
Ca AnorthiteCa(Al2Si2O8)

Other Regions, Features and Areas containing this locality

AsiaContinent
Okhotsk PlateTectonic Plate

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.

References

 
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