ALMOST THERE!. Help us with a final push needed to keep mindat.org running. Click here to help.
Catawiki are hosting a mindat.org benefit auction. All proceeds to mindat.org! BID NOW
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Oyashirazu beach, Ohmi, Itoigawa City, Niigata, Japani
Regional Level Types
Oyashirazu beachBeach
Ohmi- not defined -
Itoigawa CityCity
NiigataPrefecture
JapanCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 37° 0' 16'' North , 137° 43' 55'' East
Latitude & Longitude (decimal): 37.00444,137.73194
GeoHash:G#: xn9fw0mqd
Locality type:Beach
Köppen climate type:Cfa : Humid subtropical climate


A gravel beach famous for jadeite pebbles derived from Renge Belt high-pressure metamorphic rocks. Thoroughly picked over by local jade hunters and tourists, so any interesting material is now very scarce.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals. 2 (TL) - type locality of 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:

Calcite
Formula: CaCO3
Reference: Alfredo Petrov, field collected specimens
'Chrysoprase'
Reference: Alluvial cobbles in innumerable collections; common.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Alfredo Petrov, field collected specimens
'Ferro-Actinolite-Tremolite Series'
Reference: Alfredo Petrov, field collected specimens
Itoigawaite (TL)
Formula: SrAl2(Si2O7)(OH)2 · H2O
Type Locality:
Reference: Miyajima et al. (1999) Mineralogical Magazine 63, 909-916.
'Jade'
Reference: Alfredo Petrov, field collected specimens
Jadeite
Formula: Na(Al,Fe3+)Si2O6
Reference: Miyajima et al. (2001) Mineralogical Magazine 65, 111-120; Miyajima et al. (1999) Mineralogical Magazine 63, 909-916.
'K Feldspar'
Reference: Alfredo Petrov, field collected specimens
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Alfredo Petrov, field collected specimens
Muscovite var: Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
Reference: Alfredo Petrov, field collected specimens
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Miyajima et al. (1999) Mineralogical Magazine 63, 909-916.
'Nephrite'
Reference: Alfredo Petrov, field collected specimens
Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Reference: Alluvial cobbles in innumerable collections; common.
Pectolite
Formula: NaCa2Si3O8(OH)
Reference: Alluvial cobbles in innumerable collections; common.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Alluvial cobbles in innumerable collections; common.
Quartz
Formula: SiO2
Reference: Alfredo Petrov, field collected specimens
Quartz var: Aventurine
Formula: SiO2
Reference: Alfredo Petrov, field collected specimens
Quartz var: Chalcedony
Formula: SiO2
Reference: Alfredo Petrov, field collected specimens
Rengeite (TL)
Formula: Sr4ZrTi4(Si2O7)2O8
Type Locality:
Reference: Miyajima et al. (2001) Mineralogical Magazine 65, 111-120.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Alfredo Petrov, field collected specimens
'Strontium-Apatite'
Reference: Sakai and Akai (1988) Sanko-Gakkai Kou’en-Youshi, 16
Xonotlite
Formula: Ca6(Si6O17)(OH)2
Reference: Alluvial cobbles in innumerable collections.
Zircon
Formula: Zr(SiO4)
Reference: Miyajima et al. (1999) Mineralogical Magazine 63, 909-916.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Aventurine4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Itoigawaite (TL)9.BE.05SrAl2(Si2O7)(OH)2 · H2O
Jadeite9.DA.25Na(Al,Fe3+)Si2O6
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Fuchsite9.EC.15K(Al,Cr)3Si3O10(OH)2
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Omphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Pectolite9.DG.05NaCa2Si3O8(OH)
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Rengeite (TL)9.BE.70Sr4ZrTi4(Si2O7)2O8
Xonotlite9.DG.35Ca6(Si6O17)(OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
Chrysoprase-
Ferro-Actinolite-Tremolite Series-
Jade-
K Feldspar-
Nephrite-
Serpentine Subgroup-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Strontium-Apatite-

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
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
Rengeite (TL)56.2.13.5Sr4ZrTi4(Si2O7)2O8
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
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
Single-Width Unbranched Chains, W=1 with chains P=3
Pectolite65.2.1.4aNaCa2Si3O8(OH)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Ca-Na subgroup
Xonotlite66.3.1.1Ca6(Si6O17)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Rocks, etc.
'Chrysoprase'-
'Ferro-Actinolite-Tremolite Series'-
Itoigawaite (TL)-SrAl2(Si2O7)(OH)2 · H2O
'Jade'-
'K Feldspar'-
Muscovite
var: Fuchsite
-K(Al,Cr)3Si3O10(OH)2
'Nephrite'-
Quartz
var: Aventurine
-SiO2
var: Chalcedony-SiO2
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'Strontium-Apatite'-

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
H ItoigawaiteSrAl2(Si2O7)(OH)2 · H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H NatroliteNa2Al2Si3O10 · 2H2O
H PectoliteNaCa2Si3O8(OH)
H PrehniteCa2Al2Si3O10(OH)2
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H XonotliteCa6(Si6O17)(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O Quartz (var: Aventurine)SiO2
O CalciteCaCO3
O Quartz (var: Chalcedony)SiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
O ItoigawaiteSrAl2(Si2O7)(OH)2 · H2O
O JadeiteNa(Al,Fe3+)Si2O6
O MuscoviteKAl2(AlSi3O10)(OH)2
O NatroliteNa2Al2Si3O10 · 2H2O
O Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
O PectoliteNaCa2Si3O8(OH)
O PrehniteCa2Al2Si3O10(OH)2
O QuartzSiO2
O RengeiteSr4ZrTi4(Si2O7)2O8
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O XonotliteCa6(Si6O17)(OH)2
O ZirconZr(SiO4)
NaSodium
Na JadeiteNa(Al,Fe3+)Si2O6
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Na PectoliteNaCa2Si3O8(OH)
MgMagnesium
Mg Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Al ItoigawaiteSrAl2(Si2O7)(OH)2 · H2O
Al JadeiteNa(Al,Fe3+)Si2O6
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Al PrehniteCa2Al2Si3O10(OH)2
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Quartz (var: Aventurine)SiO2
Si Quartz (var: Chalcedony)SiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Si ItoigawaiteSrAl2(Si2O7)(OH)2 · H2O
Si JadeiteNa(Al,Fe3+)Si2O6
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Si PectoliteNaCa2Si3O8(OH)
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
Si RengeiteSr4ZrTi4(Si2O7)2O8
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si XonotliteCa6(Si6O17)(OH)2
Si ZirconZr(SiO4)
KPotassium
K Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Ca PectoliteNaCa2Si3O8(OH)
Ca PrehniteCa2Al2Si3O10(OH)2
Ca XonotliteCa6(Si6O17)(OH)2
TiTitanium
Ti RengeiteSr4ZrTi4(Si2O7)2O8
CrChromium
Cr Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe JadeiteNa(Al,Fe3+)Si2O6
Fe Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SrStrontium
Sr ItoigawaiteSrAl2(Si2O7)(OH)2 · H2O
Sr RengeiteSr4ZrTi4(Si2O7)2O8
ZrZirconium
Zr RengeiteSr4ZrTi4(Si2O7)2O8
Zr ZirconZr(SiO4)

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.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 10, 2018 09:30:42 Page generated: December 3, 2018 15:56:16
Go to top of page