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

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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:
Mad River Rock, Coastal Range, Trinity Co., California, USA


mindat Locality ID: 241257
mindat URL: http://www.mindat.org/loc-241257.html

Tectonic Settings:

Total number of sublocalities beneath "Mad River Rock, Coastal Range, Trinity Co., California, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Brookite Occurrence
Copper Queen Group (2)
Fortuna Group
Hale Creek Mine

Latitude: 40°22'35"N
Longitude: 123°28'4"W
Decimal Degree (lat, lon): 40.376388888889,-123.46777777778

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 Cu Fe H K Mg Mn Na O S Si Sr Ti V 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAluniteAragoniteBaryteBrochantiteBrookiteCalciteClayCopperDigenite
MalachiteNoneNot in a structural groupPumpellyiteQuartzSpinelSulphur

23 IMA Minerals at location:
Ankerite  (*)Ansermetite  (*)Baryte  (*)Bementite  (*)Bornite  (*)
Brochantite  (*)Brookite  (*)Calcite  (*)Chalcocite  (*)Chrysocolla  (*)
Copper  (*)Digenite  (*)Hausmannite  (*)Inesite  (*)Jarosite  (*)
Julgoldite-(Fe2+)  (*)Malachite  (*)Neotocite  (*)Quartz  (*)Rhodochrosite  (*)
Sulphur  (*)Todorokite  (*)Witherite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211808843092
Ansermetite  (*)Not in a structural groupMn2+V5+2O6·4H2O11808849
Baryte  (*)BaryteBa(SO4)118088411547
Bementite  (*)ClayMn7Si6O15(OH)81180884173
Bornite  (*)NoneCu5FeS411808845516
Brochantite  (*)BrochantiteCu4(SO4)(OH)611808841633
Brookite  (*)BrookiteTiO21180881700
Calcite  (*)CalciteCa(CO3)118088427770
Chalcocite  (*)NoneCu2S11808845707
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O11808843531
Copper  (*)CopperCu11808843846
Digenite  (*)DigeniteCu1.8S11808841027
Hausmannite  (*)SpinelMn2+Mn3+2O41180884350
Inesite  (*)NoneCa2Mn2+7Si10O28(OH)2·5H2O2180881,18088450
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)611808842228
Julgoldite-(Fe2+)  (*)PumpellyiteCa2Fe2+Fe3+2(Si2O7)(SiO4)(OH)2·H2O118088415
Malachite  (*)MalachiteCu2(CO3)(OH)2118088412537
Neotocite  (*)Allophane(Mn,Fe)SiO3·H2O (?)1180884186
Quartz  (*)QuartzSiO22180881,18088461156
Rhodochrosite  (*)CalciteMn(CO3)11808841711
Sulphur  (*)SulphurS11808842045
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O1180884433
Witherite  (*)AragoniteBa(CO3)1180884251



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL
R090030Hale Creek Mine, Mad River Rock, Coastal Range, Trinity Co., California, USAhttps://rruff.info/R090030


All locality data graciously provided by mindat.org

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