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Kotaki River, Itoigawa City, Niigata Prefecture, Japani
Regional Level Types
Kotaki RiverRiver
Itoigawa CityCity
Niigata PrefecturePrefecture
JapanCountry

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PhotosMapsSearch
05593390017272027102498.jpg
Rengeite, etc.

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
00509420017271929754537.jpg
Matsubaraite

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
00000370017271928775969.jpg
Rengeite, etc.

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
00509420017271929754537.jpg
Matsubaraite

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
00000370017271928775969.jpg
Rengeite, etc.

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
00509420017271929754537.jpg
Matsubaraite

Kotaki River, Itoigawa City, Niigata Prefecture, Japan
Latitude & Longitude (WGS84):
36° 55' 36'' North , 137° 49' 31'' East
Latitude & Longitude (decimal):
36.92691,137.82538
GRN:
N25E79
Type:
River
Köppen climate type:
Dfb : Warm-summer humid continental climate
Mindat Locality ID:
18321
Long-form identifier:
mindat:1:2:18321:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Kotakigawa; Kotaki Gawa
Name(s) in local language(s):
Kotakigawa


The Kotaki River (Kotaki Gawa, Japanese: 小滝川) is a river in Japan. It is located in the prefecture of Niigata, in the central part of the country, 210 km northwest of Tokyo, the capital of the country.

GPS coordinates are approximate.

Boulders of very tough jadeitite, rodingite, albitite, etc., in a 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.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


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

ⓘ Edenite
Formula: NaCa2Mg5(Si7Al)O22(OH)2
ⓘ Jadeite
Formula: Na(Al,Fe3+)Si2O6
ⓘ Lamprophyllite
Formula: (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
ⓘ Matsubaraite (TL)
Formula: Sr4Ti5(Si2O7)2O8
Type Locality:
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘ Omphacite var. Titanium-bearing Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
ⓘ Rengeite
Formula: Sr4ZrTi4(Si2O7)2O8
ⓘ Rutile
Formula: TiO2
ⓘ 'Strontium-Apatite'
ⓘ Tausonite
Formula: SrTiO3
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘTausonite4.CC.35SrTiO3
ⓘRutile4.DB.05TiO2
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘLamprophyllite9.BE.25(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
ⓘRengeite9.BE.70Sr4ZrTi4(Si2O7)2O8
ⓘMatsubaraite (TL)9.BE.70Sr4Ti5(Si2O7)2O8
ⓘOmphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
ⓘvar. Titanium-bearing Omphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
ⓘJadeite9.DA.25Na(Al,Fe3+)Si2O6
ⓘEdenite9.DE.15NaCa2Mg5(Si7Al)O22(OH)2
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified
ⓘ'Strontium-Apatite'-

List of minerals for each chemical element

HHydrogen
Hⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Hⓘ Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
OOxygen
Oⓘ EdeniteNaCa2Mg5(Si7Al)O22(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ⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Oⓘ RutileTiO2
Oⓘ TausoniteSrTiO3
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ ZirconZr(SiO4)
Oⓘ RengeiteSr4ZrTi4(Si2O7)2O8
Oⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Oⓘ MatsubaraiteSr4Ti5(Si2O7)2O8
FFluorine
Fⓘ Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
NaSodium
Naⓘ EdeniteNaCa2Mg5(Si7Al)O22(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. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
MgMagnesium
Mgⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Mgⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mgⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
AlAluminium
Alⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Alⓘ JadeiteNa(Al,Fe3+)Si2O6
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Alⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
SiSilicon
Siⓘ EdeniteNaCa2Mg5(Si7Al)O22(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ⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ ZirconZr(SiO4)
Siⓘ RengeiteSr4ZrTi4(Si2O7)2O8
Siⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Siⓘ MatsubaraiteSr4Ti5(Si2O7)2O8
CaCalcium
Caⓘ EdeniteNaCa2Mg5(Si7Al)O22(OH)2
Caⓘ Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
TiTitanium
Tiⓘ Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Tiⓘ RutileTiO2
Tiⓘ TausoniteSrTiO3
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ RengeiteSr4ZrTi4(Si2O7)2O8
Tiⓘ Omphacite var. Titanium-bearing Omphacite(NaaCabFec2+Mgd)(AleFef3+Tig4+Feh2+Mgj)Si2O6
Tiⓘ MatsubaraiteSr4Ti5(Si2O7)2O8
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. Titanium-bearing 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ⓘ TausoniteSrTiO3
Srⓘ RengeiteSr4ZrTi4(Si2O7)2O8
Srⓘ MatsubaraiteSr4Ti5(Si2O7)2O8
ZrZirconium
Zrⓘ ZirconZr(SiO4)
Zrⓘ RengeiteSr4ZrTi4(Si2O7)2O8

Other Databases

Wikipedia:https://ceb.wikipedia.org/wiki/Kotaki_Gawa

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
Eurasian Plate
Japan

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

https://discover-itoigawa.com/see-do/nature-and-best-views/kotakigawa-jade-gorge/
https://www.geo-itoigawa.com/eng/about/geosite/geosite9/
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