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Myoukenyama (Myokensan), Hitachiohta City, Ibaraki, Japani
Regional Level Types
Myoukenyama (Myokensan)- not defined -
Hitachiohta CityCity
IbarakiPrefecture
JapanCountry

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Latitude & Longitude (WGS84): 36° 30' North , 140° 30' East
Latitude & Longitude (decimal): 36.50000,140.50000
GeoHash:G#: xn7zthsgz
Köppen climate type:Cfa : Humid subtropical climate


Lithium-rich pegmatite. Mining for feldspar was attempted in 1960s, but was not profitable. Now abandoned. Collecting prohibited.

Regions containing this locality

Honshu Island, Japan

Island - 1,361 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


16 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Matsubara et al (1995) Mineralogical Journal, 17, 338-345
Beryl
Formula: Be3Al2(Si6O18)
Reference: Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Cassiterite
Formula: SnO2
Reference: Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Columbite-(Mn)
Formula: (Mn,Fe)(Nb,Ta)2O6
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Both pink and green varieties occur here.
Reference: Alfredo Petrov collection
Fluorcalciomicrolite
Formula: (Ca,Na)2(Ta,Nb)2O6F
Reference: Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.
'Lepidolite'
Reference: Matsubara et al (1995) Mineralogical Journal, 17, 338-345; Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: Matsubara, S., Kato, A. and Matsuyama, F. (1995) Nb-Ta minerals in a lithium pegmatite from Myokenzan, Ibaraki Prefecture, Japan. Mineralogical Journal, 17, 338–345.; Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6 (referring to Matsubara et al., 1995).
'Microlite Group var: Uranmicrolite (of Hogarth 1977)'
Reference: Matsubara et al (1995) Mineralogical Journal, 17, 338-345
Montebrasite
Formula: LiAl(PO4)(OH)
Reference: Sakurai et al (1977) Ganseki-Koubutsu-Koshogaku Zasshi, 72, 13-27.
Oxystibiomicrolite
Formula: (Sb3+,Ca)2Ta2O6O
Description: (Reported as "stibiomicrolite".)
Reference: Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Pollucite
Formula: (Cs,Na)2(Al2Si4O12) · 2H2O
Description: massive
Reference: Sakurai et al (1977) Ganseki-Koubutsu-Koshogaku Zasshi, 72, 13-27.
Quartz
Formula: SiO2
Reference: Alfredo Petrov collection; Matsubara et al (1995) Mineralogical Journal, 17, 338-345
'Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Alfredo Petrov collection
Spodumene
Formula: LiAlSi2O6
Reference: Sakurai et al (1977) Ganseki-Koubutsu-Koshogaku Zasshi, 72, 13-27
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Reference: Matsubara et al (1995) Mineralogical Journal, 17, 338-345.
Tantalite-(Fe)
Formula: FeTa2O6
Reference: Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
Tantalite-(Mn)
Formula: MnTa2O6
Reference: Sakurai et al (1977) Ganseki-Koubutsu-Koshogaku Zasshi, 72, 13-27
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Alfredo Petrov collection
Trilithionite
Formula: K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Reference: Kataoka & Uehara (2000) Koubutsu-Gakkai Kou'en-Youshi, 101.
'Verdelite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Alfredo Petrov collection
Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Columbite-(Mn)'4.DB.35(Mn,Fe)(Nb,Ta)2O6
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'var: Uranmicrolite (of Hogarth 1977)'4.00.A2-mTa2X6-wZ-n
'Quartz'4.DA.05SiO2
'Stibiotantalite'4.DE.30Sb(Ta,Nb)O4
'Tantalite-(Fe)'4.DB.35FeTa2O6
'Tantalite-(Mn)'4.DB.35MnTa2O6
Group 8 - Phosphates, Arsenates and Vanadates
'Montebrasite'8.BB.05LiAl(PO4)(OH)
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Beryl'9.CJ.05Be3Al2(Si6O18)
'Elbaite'9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
'Pollucite'9.GB.05(Cs,Na)2(Al2Si4O12) · 2H2O
'Spodumene'9.DA.30LiAlSi2O6
'Trilithionite'9.EC.20K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
'Zircon'9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Fluorcalciomicrolite'-(Ca,Na)2(Ta,Nb)2O6F
'Lepidolite'-
'Oxystibiomicrolite'-(Sb3+,Ca)2Ta2O6O
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Stibiotantalite8.1.6.2Sb(Ta,Nb)O4
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
AB2O6
Columbite-(Mn)8.3.2.4(Mn,Fe)(Nb,Ta)2O6
Tantalite-(Fe)8.3.2.1FeTa2O6
Tantalite-(Mn)8.3.2.3MnTa2O6
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Montebrasite41.5.8.2LiAl(PO4)(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Elbaite61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene65.1.4.1LiAlSi2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Pollucite77.1.1.2(Cs,Na)2(Al2Si4O12) · 2H2O
Unclassified Minerals, Rocks, etc.
Fluorcalciomicrolite-(Ca,Na)2(Ta,Nb)2O6F
'Lepidolite'-
'Microlite Group
var: Uranmicrolite (of Hogarth 1977)'
-A2-mTa2X6-wZ-n
Oxystibiomicrolite-(Sb3+,Ca)2Ta2O6O
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
Trilithionite-K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
'Verdelite'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
H MontebrasiteLiAl(PO4)(OH)
H Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Li MontebrasiteLiAl(PO4)(OH)
Li SpodumeneLiAlSi2O6
Li TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
B RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O AlbiteNa(AlSi3O8)
O BerylBe3Al2(Si6O18)
O CassiteriteSnO2
O Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
O MontebrasiteLiAl(PO4)(OH)
O Oxystibiomicrolite(Sb3+,Ca)2Ta2O6O
O Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
O QuartzSiO2
O RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O SpodumeneLiAlSi2O6
O StibiotantaliteSb(Ta,Nb)O4
O Tantalite-(Fe)FeTa2O6
O Tantalite-(Mn)MnTa2O6
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
O VerdeliteA(D3)G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
FFluorine
F Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
F TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Na Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
Na Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
AlAluminium
Al AlbiteNa(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Al MontebrasiteLiAl(PO4)(OH)
Al Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Al SpodumeneLiAlSi2O6
Al TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si BerylBe3Al2(Si6O18)
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Si Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
Si QuartzSiO2
Si SpodumeneLiAlSi2O6
Si TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Si ZirconZr(SiO4)
PPhosphorus
P MontebrasiteLiAl(PO4)(OH)
KPotassium
K TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
CaCalcium
Ca Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
Ca Oxystibiomicrolite(Sb3+,Ca)2Ta2O6O
MnManganese
Mn Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Mn Tantalite-(Mn)MnTa2O6
FeIron
Fe Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Fe Tantalite-(Fe)FeTa2O6
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Nb Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
SnTin
Sn CassiteriteSnO2
SbAntimony
Sb Oxystibiomicrolite(Sb3+,Ca)2Ta2O6O
Sb StibiotantaliteSb(Ta,Nb)O4
CsCaesium
Cs Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
TaTantalum
Ta Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Ta Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6F
Ta Microlite GroupA2-mTa2X6-wZ-n
Ta Oxystibiomicrolite(Sb3+,Ca)2Ta2O6O
Ta StibiotantaliteSb(Ta,Nb)O4
Ta Tantalite-(Fe)FeTa2O6
Ta Tantalite-(Mn)MnTa2O6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Devonian - Cambrian
358.9 - 541 Ma



ID: 3185905
Paleozoic sedimentary rocks

Age: Paleozoic (358.9 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Matsubara, S., Kato, A. and Matsuyama, F. (1995) Nb-Ta minerals in a lithium pegmatite from Myokenzan, Ibaraki Prefecture, Japan. Mineralogical Journal, 17, 338–345.
Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6 (referring to Matsubara et al., 1995).


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