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Morotu river, Morotu (Morotsu; Morutu), Sakhalin Island, Sakhalin Oblast, Russia

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude: 50° North , 142° East (est.)
Margin of Error:~496km
Locality type:River


(Perhaps an obsolete Japanese locality name from the era when Sakhalin was Japanese territory?)

Syenite and teschenite-syenite.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 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:

Aegirine
Formula: NaFe3+Si2O6
Reference: Yagi, K. (1953) Bull. Geol. Soc. Am., 64, 769-810.
Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Reference: Yagi, K. (1953) Bull. Geol. Soc. Am., 64, 769-810.
Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
Reference: Grapes, R., Yagi, K., and Okumura, K. (1979) Aenigmatite, sodic pyroxene, arfvedsonite and associated minerals in syenites from Morotu, Sakhalin. Contributions to Mineralogy and Petrology, 69, 97–103.
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Reference: Grapes, R., Yagi, K., and Okumura, K. (1979) Aenigmatite, sodic pyroxene, arfvedsonite and associated minerals in syenites from Morotu, Sakhalin. Contributions to Mineralogy and Petrology, 69, 97–103.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Description: as "soda augite"
Reference: Yagi, K. (1953) Bull. Geol. Soc. Am., 64, 769-810.
Kaersutite
Formula: {Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Reference: Yagi, Kenzo (1953) Petrochemical studies on the alkalic rocks of the Morotu district, Sakhalin. Bulletin of the Geological Society of America, 64, 769-810.; Howie, R.A. (1963) Kaersutite from the Lugar sill, Ayrshire, and from alnöite breccia, Alnö Island, Sweden. Mineralogical Magazine, vol. 33, n° 263, 718-720 [contains an analysis of kaersutite from "Tyaki, Morotu, Sakhalin, URSS" and referring to Yagi, 1953].
'Monzonite'
Reference: Yagi, Kenzo (1953) Petrochemical studies on the alkalic rocks of the Morotu district, Sakhalin. Bulletin of the Geological Society of America, 64, 769-810.; Howie, R.A. (1963) Kaersutite from the Lugar sill, Ayrshire, and from alnöite breccia, Alnö Island, Sweden. Mineralogical Magazine, vol. 33, n° 263, 718-720 [contains an analysis of kaersutite in monzonite from "Tyaki, Morotu, Sakhalin, URSS" and referring to Yagi, 1953].
Morimotoite
Formula: Ca3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
Reference: Grapes, R., Yagi, K., and Okumura, K. (1979) Aenigmatite, sodic pyroxene, arfvedsonite and associated minerals in syenites from Morotu, Sakhalin. Contributions to Mineralogy and Petrology, 69, 97–103.

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
'Aegirine-augite'9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
'Aenigmatite'9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
'Arfvedsonite'9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
'Augite'9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
'Kaersutite'9.DE.15{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
'Morimotoite'9.AD.25Ca3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
Unclassified Minerals, Rocks, etc.
'Monzonite'-

List of minerals arranged by Dana 8th Edition classification

Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Morimotoite51.4.3c.3Ca3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Aegirine-augite65.1.3b.2(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Kaersutite66.1.3a.18{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Aenigmatite69.2.1a.1Na4[Fe2+10Ti2]O4[Si12O36]
Unclassified Minerals, Rocks, etc.
Arfvedsonite-[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
'Monzonite'-

List of minerals for each chemical element

HHydrogen
H Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
OOxygen
O AegirineNaFe3+Si2O6
O Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
O AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
O Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
O MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
NaSodium
Na AegirineNaFe3+Si2O6
Na Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Na AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Na Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Na Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
MgMagnesium
Mg Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
AlAluminium
Al Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Al Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
SiSilicon
Si AegirineNaFe3+Si2O6
Si Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Si AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Si Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Si MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
CaCalcium
Ca Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Ca MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
TiTitanium
Ti AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Ti Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Ti MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
FeIron
Fe AegirineNaFe3+Si2O6
Fe Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Fe AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Fe Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Yagi, Kenzo (1953) Petrochemical studies on the alkalic rocks of the Morotu district, Sakhalin. Bulletin of the Geological Society of America, 64, 769-810.
Howie, R.A. (1963) Kaersutite from the Lugar sill, Ayrshire, and from alnöite breccia, Alnö Island, Sweden. Mineralogical Magazine, vol. 33, n° 263, 718-720 [contains an analysis of kaersutite from "Tyaki, Morotu, Sakhalin, URSS" and referring to Yagi, 1953].


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