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Bizan (Otakiyama), Tokushima City, Tokushima Prefecture, Japani
Regional Level Types
Bizan (Otakiyama)Hill
Tokushima CityCity
Tokushima PrefecturePrefecture
JapanCountry

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Key
Latitude & Longitude (WGS84):
34° 3' 39'' North , 134° 31' 1'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Tokushima267,345 (2017)4.6km
Ishii26,394 (2017)6.9km
Komatsushimachō42,598 (2017)9.1km
Kamojimachō-jōgejima24,374 (2017)15.4km
Narutochō-mitsuishi64,082 (2017)17.6km
Name(s) in local language(s):
眉山


277 or 280 meter elevation hill, now mostly a city park. Schists.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

16 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
Aegirine
Formula: NaFe3+Si2O6
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
Barroisite
Formula: ◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Reference: DHZ, Vol. 2B, 2nd ed., p 636.
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Reference: Kozo Takeda pers. comm.
'Chlorite Group'
Reference: Alfredo Petrov - field observations, 5-2014
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Reference: Dr. Yohachiro Okamoto collection (curated at Geological Survey museum, Japan); Petrology exhibit at Stone Fair, Tokushima City, May 2014.
Hematite
Formula: Fe2O3
Reference: Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo; Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698
Ilmenite
Formula: Fe2+TiO3
Reference: University of Tokyo collection; Okamoto collection (curated at the Geological Survey museum, Japan)
Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Reference: Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698.
Magnetite
Formula: Fe2+Fe3+2O4
Description: (Highly magnetic, lustrous sharp simple octahedra embedded in schist. Not analyzed.)
Reference: Alfredo Petrov - field observations, 5-2014
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Nakagawa, M., Santosh, M., & Maruyama, S. (2011) Manganese formations in the accretionary belts of Japan: implications for subduction–accretion process in an active convergent margin. Journal of Asian Earth Sciences, 42(3), 208-222.
Pickeringite
Formula: MgAl2(SO4)4 · 22H2O
Reference: (T. Minakawa, Univ. Ehime)
Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo
Quartz
Formula: SiO2
Reference: Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo; Miyashiro, A. and Iwasaki, M. (1957) Magnesioriebeckite in crystalline schists of Bizan in Sikoku, Japan. Journal of the Geological Society of Japan, 63, 698; Nakagawa, M., Santosh, M., & Maruyama, S. (2011) Manganese formations in the accretionary belts of Japan: implications for subduction–accretion process in an active convergent margin. Journal of Asian Earth Sciences, 42(3), 208-222.
Rutile
Formula: TiO2
Reference: Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo; Okamoto collection (curated at the Geological Survey museum, Japan); Dr Yohachiro Okamoto (1876-1960) collection (curated by the Geological Survey of Japan)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Pickeringite7.CB.85MgAl2(SO4)4 · 22H2O
Group 9 - Silicates
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Aegirine9.DA.25NaFe3+Si2O6
Almandine9.AD.25Fe2+3Al2(SiO4)3
Barroisite9.DE.20◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Glaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
Magnesio-riebeckite9.DE.25◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Piemontite9.BG.05a{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
(AB)2X3
Braunite7.5.1.3Mn2+Mn3+6(SiO4)O8
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AB2(XO4)4·H2O
Pickeringite29.7.3.1MgAl2(SO4)4 · 22H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
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)
Piemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Glaucophane66.1.3c.1◻[Na2][Mg3Al2]Si8O22(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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Barroisite-◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
'Chlorite Group'-
Magnesio-riebeckite-◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Muscovite
var. Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PickeringiteMgAl2(SO4)4 · 22H2O
H Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
H Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
H Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
OOxygen
O RutileTiO2
O HematiteFe2O3
O QuartzSiO2
O Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PickeringiteMgAl2(SO4)4 · 22H2O
O IlmeniteFe2+TiO3
O Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
O Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
O BrauniteMn2+Mn63+(SiO4)O8
O MagnetiteFe2+Fe23+O4
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O AegirineNaFe3+Si2O6
O AlmandineFe32+Al2(SiO4)3
O ApatiteCa5(PO4)3(Cl/F/OH)
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
O Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Na Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Na AegirineNaFe3+Si2O6
Na Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
MgMagnesium
Mg PickeringiteMgAl2(SO4)4 · 22H2O
Mg Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Mg Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Mg Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
AlAluminium
Al Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PickeringiteMgAl2(SO4)4 · 22H2O
Al Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al AlmandineFe32+Al2(SiO4)3
Al Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Si Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Si BrauniteMn2+Mn63+(SiO4)O8
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si AegirineNaFe3+Si2O6
Si AlmandineFe32+Al2(SiO4)3
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Si Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S PickeringiteMgAl2(SO4)4 · 22H2O
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2
Ca Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
TiTitanium
Ti RutileTiO2
Ti IlmeniteFe2+TiO3
MnManganese
Mn Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Mn BrauniteMn2+Mn63+(SiO4)O8
FeIron
Fe HematiteFe2O3
Fe IlmeniteFe2+TiO3
Fe Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe AegirineNaFe3+Si2O6
Fe AlmandineFe32+Al2(SiO4)3
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2

Localities in this Region

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent

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.
 
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