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Kotaki River (Kotakigawa), Itoigawa City, Niigata, Japani
Regional Level Types
Kotaki River (Kotakigawa)River
Itoigawa CityCity
NiigataPrefecture
JapanCountry

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Name(s) in local language(s):Kotakigawa
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 37° North , 137° East (est.)
Margin of Error:~37km
Locality type:River
Köppen climate type:Cfa : Humid subtropical climate


Boulders of very tough jadeitite, rodingite, albitite, etc., in river draining high-pressure metamorphic rocks of the Renge Belt. Protected natural monument area - Collecting jade in the cliffs, and some portions of the river, is prohibited.

Regions containing this locality

Amur Plate

Plate - 1,808 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Edenite
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Reference: Jan Bernard and Jaroslav Hyrsl (2004) Minerals and their Localities. (Granit s.r.o., Prague)
Jadeite
Formula: Na(Al,Fe3+)Si2O6
Reference: Lapis (2003): (1), 50.
Lamprophyllite
Formula: (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Reference: European Journal of Mineralogy (2002):1119-1128.
Matsubaraite (TL)
Formula: Sr4Ti5(Si2O7)2O8
Type Locality:
Reference: European Journal of Mineralogy (2002):1119-1128.
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: European Journal of Mineralogy (2002):1119-1128.
Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Reference: Ohe Rikosha specimens
Omphacite var: Titanian Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
Reference: Ohe Rikosha specimens
Rengeite
Formula: Sr4ZrTi4(Si2O7)2O8
Reference: European Journal of Mineralogy (2002):1119-1128.
Rutile
Formula: TiO2
Reference: European Journal of Mineralogy (2002):1119-1128.
'Strontium-Apatite'
Reference: Sakai and Akai (1988) Sanko-Gakkai Kou’en-Youshi, 16.
Tausonite
Formula: SrTiO3
Reference: European Journal of Mineralogy (2002):1119-1128.
Titanite
Formula: CaTi(SiO4)O
Reference: European Journal of Mineralogy (2002):1119-1128.
Zircon
Formula: Zr(SiO4)
Reference: European Journal of Mineralogy (2002):1119-1128.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Rutile'4.DB.05TiO2
'Tausonite'4.CC.35SrTiO3
Group 9 - Silicates
'Edenite'9.DE.15{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
'Jadeite'9.DA.25Na(Al,Fe3+)Si2O6
'Lamprophyllite'9.BE.25(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
'Matsubaraite' (TL)9.BE.70Sr4Ti5(Si2O7)2O8
'Natrolite'9.GA.05Na2Al2Si3O10 · 2H2O
'Omphacite'9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
var: Titanian Omphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
'Rengeite'9.BE.70Sr4ZrTi4(Si2O7)2O8
Titanite9.AG.15CaTi(SiO4)O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Strontium-Apatite'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Tausonite4.3.3.5SrTiO3
AX2
Rutile4.4.1.1TiO2
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Lamprophyllite56.2.6c.4(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Rengeite56.2.13.5Sr4ZrTi4(Si2O7)2O8
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Jadeite65.1.3c.1Na(Al,Fe3+)Si2O6
Omphacite65.1.3b.1(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Edenite66.1.3a.10{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Rocks, etc.
Matsubaraite (TL)-Sr4Ti5(Si2O7)2O8
Omphacite
var: Titanian Omphacite
-(NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
'Strontium-Apatite'-

List of minerals for each chemical element

HHydrogen
H Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
H Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
H NatroliteNa2Al2Si3O10 · 2H2O
OOxygen
O Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
O JadeiteNa(Al,Fe3+)Si2O6
O Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
O MatsubaraiteSr4Ti5(Si2O7)2O8
O NatroliteNa2Al2Si3O10 · 2H2O
O Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
O RengeiteSr4ZrTi4(Si2O7)2O8
O RutileTiO2
O TausoniteSrTiO3
O Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
O TitaniteCaTi(SiO4)O
O ZirconZr(SiO4)
FFluorine
F Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
NaSodium
Na Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Na JadeiteNa(Al,Fe3+)Si2O6
Na Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Na Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
MgMagnesium
Mg Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Mg Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mg Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
AlAluminium
Al Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Al JadeiteNa(Al,Fe3+)Si2O6
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Al Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
SiSilicon
Si Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Si JadeiteNa(Al,Fe3+)Si2O6
Si Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Si MatsubaraiteSr4Ti5(Si2O7)2O8
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Si RengeiteSr4ZrTi4(Si2O7)2O8
Si Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Si TitaniteCaTi(SiO4)O
Si ZirconZr(SiO4)
CaCalcium
Ca Edenite{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Ca Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Ca Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Ti MatsubaraiteSr4Ti5(Si2O7)2O8
Ti RengeiteSr4ZrTi4(Si2O7)2O8
Ti RutileTiO2
Ti TausoniteSrTiO3
Ti Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
FeIron
Fe JadeiteNa(Al,Fe3+)Si2O6
Fe Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Fe Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Fe Omphacite (var: Titanian Omphacite)(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
SrStrontium
Sr Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Sr MatsubaraiteSr4Ti5(Si2O7)2O8
Sr RengeiteSr4ZrTi4(Si2O7)2O8
Sr TausoniteSrTiO3
ZrZirconium
Zr RengeiteSr4ZrTi4(Si2O7)2O8
Zr ZirconZr(SiO4)

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