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Tatarazawa, Fujioka City, Gunma Prefecture, Japani
| Regional Level Types | |
|---|---|
| Tatarazawa | Quarry |
| Fujioka City | City |
| Gunma Prefecture | Prefecture |
| Japan | Country |
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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
Type:
Kรถppen climate type:
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 that the entire occurrence had been carted away by mineral collectors and not a trace of the stuff can now be found.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| โ Alumohydrocalcite Formula: CaAl2(CO3)2(OH)4 · 4H2O Description: Also a chromium rich variety |
| โ Alumohydrocalcite var. Chromium-bearing Alumohydrocalcite Formula: Ca(Al,Cr)2(CO3)2(OH)4 · 4H2O |
| โ Ammonioleucite (TL) Formula: (NH4)(AlSi2O6) Type Locality: Description: White and sometimes pink balls comprised of radiating acicular crystals up to a cm long. Theyโre usually associated with chromian dawsonite which is also pink and sometimes nordstrandite. The material forms in fissures in serpentinite |
| โ Analcime Formula: Na(AlSi2O6) · H2O |
| โ Calcite Formula: CaCO3 |
| โ Chalcopyrite Formula: CuFeS2 |
| โ Dawsonite Formula: NaAlCO3(OH)2 Description: Chromium rich variety. |
| โ Dawsonite var. Chromium-bearing Dawsonite Formula: Na(Al,Cr)CO3(OH)2 |
| โ Dolomite Formula: CaMg(CO3)2 |
| โ Graphite Formula: C |
| โ Leucite Formula: K(AlSi2O6) |
| โ Millerite Formula: NiS |
| โ Nordstrandite Formula: Al(OH)3 |
| โ Pyrite Formula: FeS2 |
| โ Quartz Formula: SiO2 |
| โ Siderite Formula: FeCO3 |
| โ Vaesite Formula: NiS2 |
| โ Violarite Formula: Fe2+Ni3+2S4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| โ | Millerite | 2.CC.20 | NiS |
| โ | Violarite | 2.DA.05 | Fe2+Ni3+2S4 |
| โ | Pyrite | 2.EB.05a | FeS2 |
| โ | Vaesite | 2.EB.05a | NiS2 |
| Group 4 - Oxides and Hydroxides | |||
| โ | Quartz | 4.DA.05 | SiO2 |
| โ | Nordstrandite | 4.FE.10 | Al(OH)3 |
| Group 5 - Nitrates and Carbonates | |||
| โ | Calcite | 5.AB.05 | CaCO3 |
| โ | Siderite | 5.AB.05 | FeCO3 |
| โ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| โ | Dawsonite | 5.BB.10 | NaAlCO3(OH)2 |
| โ | var. Chromium-bearing Dawsonite | 5.BB.10 | Na(Al,Cr)CO3(OH)2 |
| โ | Alumohydrocalcite | 5.DB.05 | CaAl2(CO3)2(OH)4 ยท 4H2O |
| โ | var. Chromium-bearing Alumohydrocalcite | 5.DB.05 | Ca(Al,Cr)2(CO3)2(OH)4 ยท 4H2O |
| Group 9 - Silicates | |||
| โ | Ammonioleucite (TL) | 9.GB.05 | (NH4)(AlSi2O6) |
| โ | Analcime | 9.GB.05 | Na(AlSi2O6) ยท H2O |
| โ | Leucite | 9.GB.05 | K(AlSi2O6) |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian Plate
- Northern Japan ForearcAccretionary Complex
Japan
- Honshu IslandIsland
- Japanese Alps
Okhotsk PlateTectonic Plate
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References
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
Tatarazawa, Fujioka City, Gunma Prefecture, Japan