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:
Mazaruni District, Guyana


mindat Locality ID: 23761
mindat URL: http://www.mindat.org/loc-23761.html

Tectonic Settings:

Total number of sublocalities beneath "Mazaruni District, Guyana": 5
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Cuyuni River
Issineru
Kamakusa

Latitude: 6°31'13"N
Longitude: 59°57'48"W
Decimal Degree (lat, lon): 6.5202777777778,-59.963333333333
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: Ag Al Au Ba C Ca Cr Cu F Fe H Mg O P Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAmphiboleClayCopperCorundumDiamondDiasporeNonePyrophylliteQuartz
SpinelTopaz

15 IMA Minerals at location:
Actinolite  (*)Bracewellite  (*)Cummingtonite  (*)Diamond  (*)Eskolaite  (*)
Gahnite  (*)Gold  (*)Gorceixite  (*)Grimaldiite  (*)Guyanaite  (*)
Mcconnellite  (*)Pyrophyllite  (*)Quartz  (*)Silver  (*)Topaz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)21647183419
Bracewellite  (*)DiasporeCrO(OH)1647212
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)2164718327
Diamond  (*)DiamondC164719697
Eskolaite  (*)CorundumCr2O316472130
Gahnite  (*)SpinelZnAl2O4164721445
Gold  (*)CopperAu16472130554
Gorceixite  (*)AluniteBaAl3(PO4)(PO3OH)(OH)6164719121
Grimaldiite  (*)NoneCrO(OH)1647215
Guyanaite  (*)NoneCrO(OH)1647216
Mcconnellite  (*)NoneCu1+CrO21647212
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)2164721771
Quartz  (*)QuartzSiO216472161156
Silver  (*)CopperAg1647215186
Topaz  (*)TopazAl2SiO4F21647211476


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL
R070444Merume River, Kamakusa, Mazaruni District, Guyanahttps://rruff.info/R070444

All locality data graciously provided by mindat.org

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