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:
Pugu Hills, Dar Es Salaam Region, Tanzania

mindat Locality ID: 219740
mindat URL: http://www.mindat.org/loc-219740.html

Tectonic Settings:

Total number of sublocalities beneath "Pugu Hills, Dar Es Salaam Region, Tanzania": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Pugu Hill Kaolin Deposit

Latitude: 6°52'29"S
Longitude: 39°2'48"E
Decimal Degree (lat, lon): -6.8747222222222,39.046666666667

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.

Allophane	Clay	Diaspore	Kaolinite	Mica	None	Palygorskite	Quartz	Rocksalt	Smectite-vermiculite

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 C Ca Cl Fe H K Mg Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Clay Diaspore Kaolinite Mica None Palygorskite Quartz Rocksalt Smectite-vermiculite

11 IMA Minerals at location:

Dolomite ()*	Gibbsite ()*	Goethite ()*	Halite ()*	Imogolite ()*
Kaolinite ()*	Montmorillonite ()*	Muscovite ()*	Palygorskite ()*	Quartz ()*
Vermiculite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Dolomite ()*	None	CaMg(CO₃)₂	1	115661	9895
Gibbsite ()*	None	Al(OH)₃	1	115661	504
Goethite ()*	Diaspore	FeO(OH)	1	115661	7437
Halite ()*	Rocksalt	NaCl	1	115661	1398
Imogolite ()*	Allophane	Al₂SiO₃(OH)₄	1	115661	7
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1	115661	5591
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	1	115661	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	115661	17380
Palygorskite ()*	Palygorskite Clay	(Mg,Al)₂Si₄O₁₀(OH)·4H₂O	1	115661	306
Quartz ()*	Quartz	SiO₂	1	115661	61156
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	1	115661	652

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...