Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Hamayokokawa Mine (Hamayokogawa Mine), Kamiina District, Nagano, Japan


mindat Locality ID: 25074
mindat URL: http://www.mindat.org/loc-25074.html

Tectonic Settings:

Total number of sublocalities beneath "Hamayokokawa Mine (Hamayokogawa Mine), Kamiina District, Nagano, Japan": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Asahi Orebody
Oiwa Orebody
Principal Orebody
Setozawa Orebody

Latitude: 35°58'23"N
Longitude: 137°54'0"E
Decimal Degree (lat, lon): 35.973055555556,137.9
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ba C Ca Fe H K Mg Mn Na O S Si Sr Ti V 

Elements from minerals reported directly at this locality: Al Ba Ca Fe H K Mg Mn Na O S Si Sr Ti V 

Structural Groups for minerals in this locality: 
AllophaneBaryteBrauniteBruciteCalciteCorundumFeldsparGarnetHumiteNone
Not in a structural groupOlivineQuartzRhodoniteRocksaltRutileSpinel

27 IMA Minerals at location:
Alabandite  (*)Albite  (*)Alleghanyite  (*)Anatase  (*)Baryte  (*)
Braunite  (*)Calcite  (*)Feitknechtite  (*)Hausmannite  (*)Hematite  (*)
Jacobsite  (*)Magnetite  (*)Manganosite  (*)Neotocite  (*)Pyrochroite  (*)
Pyrolusite  (*)Pyrophanite  (*)Pyroxmangite  (*)Quartz  (*)Rhodochrosite  (*)
Rhodonite  (*)Ribbeite  (*)Sonolite  (*)Spessartine  (*)Suzukiite  (*)
Tephroite  (*)Todorokite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alabandite  (*)RocksaltMnS0312
Albite  (*)FeldsparNa(AlSi3O8)08803
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)2275799,7580177
Anatase  (*)Not in a structural groupTiO21758022162
Baryte  (*)BaryteBa(SO4)275799,7580111547
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)175800483
Calcite  (*)CalciteCa(CO3)275799,7580127770
Feitknechtite  (*)NoneMn3+O(OH)275799,7580119
Hausmannite  (*)SpinelMn2+Mn3+2O4275799,75801350
Hematite  (*)CorundumFe2O317580014640
Jacobsite  (*)SpinelMn2+Fe3+2O4275799,75801172
Magnetite  (*)SpinelFe2+Fe3+2O417580114899
Manganosite  (*)RocksaltMnO275799,7580173
Neotocite  (*)Allophane(Mn,Fe)SiO3·H2O (?)0186
Pyrochroite  (*)BruciteMn2+(OH)2275799,7580156
Pyrolusite  (*)RutileMnO203106
Pyrophanite  (*)CorundumMn2+TiO30244
Pyroxmangite  (*)NoneMn2+SiO3275799,75801147
Quartz  (*)QuartzSiO2275799,7580161156
Rhodochrosite  (*)CalciteMn(CO3)275799,758011711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)375799,75800,75801969
Ribbeite  (*)HumiteMn2+5(SiO4)2(OH)217579913
Sonolite  (*)HumiteMn2+9(SiO4)4(OH)2275799,7580150
Spessartine  (*)GarnetMn2+3Al2(SiO4)31758001214
Suzukiite  (*)NoneBaV4+Si2O704
Tephroite  (*)OlivineMn2+2(SiO4)275799,75801240
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O0433


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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