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:
Kamakusa, Mazaruni District, Guyana

mindat Locality ID: 287753
mindat URL: http://www.mindat.org/loc-287753.html

Tectonic Settings:

Total number of sublocalities beneath "Kamakusa, Mazaruni District, Guyana": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Merume River

Latitude: 5°57'0"N
Longitude: 59°54'"W
Decimal Degree (lat, lon): 5.95,-59.9

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Clay	Copper	Corundum	Diaspore	None	Pyrophyllite	Quartz	Spinel	Topaz

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 Cr Cu F H O Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Clay Copper Corundum Diaspore None Pyrophyllite Quartz Spinel Topaz

11 IMA Minerals at location:

Bracewellite ()*	Eskolaite ()*	Gahnite ()*	Gold ()*	Grimaldiite ()*
Guyanaite ()*	Mcconnellite ()*	Pyrophyllite ()*	Quartz ()*	Silver ()*
Topaz ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Bracewellite ()*	Diaspore	CrO(OH)	1	64721	2
Eskolaite ()*	Corundum	Cr₂O₃	1	64721	30
Gahnite ()*	Spinel	ZnAl₂O₄	1	64721	445
Gold ()*	Copper	Au	1	64721	30554
Grimaldiite ()*	None	CrO(OH)	1	64721	5
Guyanaite ()*	None	CrO(OH)	1	64721	6
Mcconnellite ()*	None	Cu¹⁺CrO₂	1	64721	2
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	1	64721	771
Quartz ()*	Quartz	SiO₂	1	64721	61156
Silver ()*	Copper	Ag	1	64721	5186
Topaz ()*	Topaz	Al₂SiO₄F₂	1	64721	1476

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R070444	Merume River, Kamakusa, Mazaruni District, Guyana	https://rruff.info/R070444

All locality data graciously provided by mindat.org

All age data...