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Tatarazawa, Fujioka City, Gunma Prefecture, Japani
Regional Level Types
TatarazawaQuarry
Fujioka CityCity
Gunma PrefecturePrefecture
JapanCountry

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Latitude & Longitude (WGS84):
36° North , 138° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~18km
GRN:
N25E80
Type:
Quarry
Köppen climate type:
Cfa : Humid subtropical climate
Mindat Locality ID:
2183
Long-form identifier:
mindat:1:2:2183:1
GUID (UUID V4):
3c6f3cf4-6fdc-45e2-adb3-a25eaff706df


The quarry is on the contact between a fossiliferous arkose sandstone and a greenschist. These contacts are dolomitized. There was a spring in the quarry that contained hydrogen sulfide. Hot spring alteration aureole.

Dr Hidemichi Hori, the original discoverer of the ammonioleucite-bearing outcrop, went back for a second visit 15 years later and found thatthe entire occurrence had been carted away by mineral collectors and not a trace of the stuff can now be found.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAlumohydrocalcite
Formula:CaAl2(CO3)2(OH)4 · 4H2O
Description: Also a chromium rich variety
ⓘAlumohydrocalcite var. Chromium-bearing Alumohydrocalcite
Formula:Ca(Al,Cr)2(CO3)2(OH)4 · 4H2O
ⓘAmmonioleucite (TL)
Formula:(NH4)(AlSi2O6)
Type Locality:
Description: White and sometimes pink balls comprised of radiating acicular crystals up to a cm long. They’re usually associated with chromian dawsonite which is also pink and sometimes nordstrandite. The material forms in fissures in serpentinite
ⓘAnalcime
Formula:Na(AlSi2O6) · H2O
ⓘCalcite
Formula:CaCO3
ⓘChalcopyrite
Formula:CuFeS2
ⓘDawsonite
Formula:NaAlCO3(OH)2
Description: Chromium rich variety.
ⓘDawsonite var. Chromium-bearing Dawsonite
Formula:Na(Al,Cr)CO3(OH)2
ⓘDolomite
Formula:CaMg(CO3)2
ⓘGraphite
Formula:C
ⓘLeucite
Formula:K(AlSi2O6)
ⓘMillerite
Formula:NiS
ⓘNordstrandite
Formula:Al(OH)3
ⓘPyrite
Formula:FeS2
ⓘQuartz
Formula:SiO2
ⓘSiderite
Formula:FeCO3
ⓘVaesite
Formula:NiS2
ⓘViolarite
Formula:Fe2+Ni3+2S4

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘMillerite2.CC.20NiS
ⓘViolarite2.DA.05Fe2+Ni3+2S4
ⓘPyrite2.EB.05aFeS2
ⓘVaesite2.EB.05aNiS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘNordstrandite4.FE.10Al(OH)3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘDawsonite5.BB.10NaAlCO3(OH)2
ⓘvar. Chromium-bearing Dawsonite5.BB.10Na(Al,Cr)CO3(OH)2
ⓘAlumohydrocalcite5.DB.05CaAl2(CO3)2(OH)4 · 4H2O
ⓘvar. Chromium-bearing Alumohydrocalcite5.DB.05Ca(Al,Cr)2(CO3)2(OH)4 · 4H2O
Group 9 - Silicates
ⓘAmmonioleucite (TL)9.GB.05(NH4)(AlSi2O6)
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
ⓘLeucite9.GB.05K(AlSi2O6)

List of minerals for each chemical element

HHydrogen
HⓘAlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2O
HⓘAmmonioleucite(NH4)(AlSi2O6)
HⓘAnalcimeNa(AlSi2O6) · H2O
HⓘDawsoniteNaAlCO3(OH)2
HⓘNordstranditeAl(OH)3
HⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
HⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
CCarbon
CⓘAlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2O
CⓘCalciteCaCO3
CⓘDawsoniteNaAlCO3(OH)2
CⓘDolomiteCaMg(CO3)2
CⓘGraphiteC
CⓘSideriteFeCO3
CⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
CⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
NNitrogen
NⓘAmmonioleucite(NH4)(AlSi2O6)
OOxygen
OⓘAlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2O
OⓘAmmonioleucite(NH4)(AlSi2O6)
OⓘAnalcimeNa(AlSi2O6) · H2O
OⓘCalciteCaCO3
OⓘDawsoniteNaAlCO3(OH)2
OⓘDolomiteCaMg(CO3)2
OⓘLeuciteK(AlSi2O6)
OⓘNordstranditeAl(OH)3
OⓘQuartzSiO2
OⓘSideriteFeCO3
OⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
OⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
NaSodium
NaⓘAnalcimeNa(AlSi2O6) · H2O
NaⓘDawsoniteNaAlCO3(OH)2
NaⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
MgMagnesium
MgⓘDolomiteCaMg(CO3)2
AlAluminium
AlⓘAlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2O
AlⓘAmmonioleucite(NH4)(AlSi2O6)
AlⓘAnalcimeNa(AlSi2O6) · H2O
AlⓘDawsoniteNaAlCO3(OH)2
AlⓘLeuciteK(AlSi2O6)
AlⓘNordstranditeAl(OH)3
AlⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
AlⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
SiSilicon
SiⓘAmmonioleucite(NH4)(AlSi2O6)
SiⓘAnalcimeNa(AlSi2O6) · H2O
SiⓘLeuciteK(AlSi2O6)
SiⓘQuartzSiO2
SSulfur
SⓘChalcopyriteCuFeS2
SⓘMilleriteNiS
SⓘPyriteFeS2
SⓘVaesiteNiS2
SⓘViolariteFe2+Ni23+S4
KPotassium
KⓘLeuciteK(AlSi2O6)
CaCalcium
CaⓘAlumohydrocalciteCaAl2(CO3)2(OH)4 · 4H2O
CaⓘCalciteCaCO3
CaⓘDolomiteCaMg(CO3)2
CaⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
CrChromium
CrⓘDawsonite var.Chromium-bearing DawsoniteNa(Al,Cr)CO3(OH)2
CrⓘAlumohydrocalcite var.Chromium-bearing AlumohydrocalciteCa(Al,Cr)2(CO3)2(OH)4 · 4H2O
FeIron
FeⓘChalcopyriteCuFeS2
FeⓘPyriteFeS2
FeⓘSideriteFeCO3
FeⓘViolariteFe2+Ni23+S4
NiNickel
NiⓘMilleriteNiS
NiⓘVaesiteNiS2
NiⓘViolariteFe2+Ni23+S4
CuCopper
CuⓘChalcopyriteCuFeS2

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian Plate
Japan
Japan
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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

(n.d.)
(n.d.)
Hori, H., Nagashima, K., Yamada, M., Miyawaki, R., Marubashi, T. (1986) Ammonioleucite, a new mineral from Tatarazawa, Fujioka, Japan.American Mineralogist, 71 (7-8) 1022-1027
Echigo, Takuya, Kimata, Mitsuyoshi, Kyono, Atsushi, Takizawa, Shigeru, Shimizu, Masahiro (2004) Ammonia intercalated graphite from Tatarazawa, Fujioka, Japan. Japanese Magazine of Mineralogical and Petrological Sciences: 33(3): 77-84 (in Japanese with English abstract).
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