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:
Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India

Oldest recorded age at locality: 53
Youngest recorded age at locality: 9

mindat Locality ID: 279945
mindat URL: http://www.mindat.org/loc-279945.html

Tectonic Settings:

Total number of sublocalities beneath "Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, India": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Donimalai Mine

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Fe H K Li Mn O Pb Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BixbyiteBrauniteBruciteCoronaditeNoneRamsdelliteRocksaltRutileSpinel

11 IMA Minerals at location:
Bixbyite  (*)Braunite  (*)Coronadite  (*)Cryptomelane  (*)Jacobsite  (*)
Lithiophorite  (*)Manganosite  (*)Pyrochroite  (*)Pyrolusite  (*)Ramsdellite  (*)
Woodruffite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Bixbyite  (*)BixbyiteMn3+2O3539166295104
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)539166295483
Coronadite  (*)CoronaditePb(Mn4+6Mn3+2)O16539166295227
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O16539166295599
Jacobsite  (*)SpinelMn2+Fe3+2O4539166295172
Lithiophorite  (*)None(Al,Li)(Mn4+,Mn3+)O2(OH)2539166295210
Manganosite  (*)RocksaltMnO53916629573
Pyrochroite  (*)BruciteMn2+(OH)253916629556
Pyrolusite  (*)RutileMnO25391662953106
Ramsdellite  (*)RamsdelliteMnO253916629588
Woodruffite  (*)NoneZn2(Mn4+,Mn3+)5O10·4H2O53916629525



5 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Scott-G44_299-0001535053-5040Ar-39Arage of weatheringcryptomelane   Cryptomelane Mn279945Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, IndiaSandur Mn-ore depositBeauvais et al. (2016)10.1130/G37303.1G44_299Age for highland Sandur deposit, (bauxitic) weathering
Scott-G44_299-0002362636-2640Ar-39Arage of weatheringcryptomelane   Cryptomelane Mn279945Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, IndiaSandur Mn-ore depositBeauvais et al. (2016)10.1130/G37303.1G44_299Age for highland Sandur deposit, geochemical reworking of bauxites
Scott-G44_299-0003474547-4540Ar-39Arage of weatheringcryptomelane   Cryptomelane Mn279945Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, IndiaSandur Mn-ore depositBeauvais et al. (2016)10.1130/G37303.1G44_299Age for lowland Sandur deposit, early lateritic weathering
Scott-G44_299-0004241924-1940Ar-39Arage of weatheringcryptomelane   Cryptomelane Mn279945Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, IndiaSandur Mn-ore depositBeauvais et al. (2016)10.1130/G37303.1G44_299Age for lowland Sandur deposit, weathering and formation of the pediment’s capping ferricrete
Scott-G44_299-000599940Ar-39Arage of weatheringcryptomelane   Cryptomelane Mn279945Sandur, Bellary-Hospet Iron Belt, Bellary District, Karnataka, IndiaSandur Mn-ore depositBeauvais et al. (2016)10.1130/G37303.1G44_299Age for lowland Sandur deposit, discrete weathering pulse, which left little imprint in the weathering profile


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...