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:
Sierra Leone

mindat Locality ID: 21890
mindat URL: http://www.mindat.org/loc-21890.html

Tectonic Settings:

Total number of sublocalities beneath "Sierra Leone": 19
Total number of bottom-level sublocalities: 9

Number of Child Localities: 4
Child Localities:
Eastern Province
Northern Province
Southern Province
Western Area

Latitude: 8°30'27"N
Longitude: 11°58'14"W
Decimal Degree (lat, lon): 8.5075,-11.970555555556

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.

Amphibole	Arsenopyrite	Auricupride	Baddeleyite	Bowieite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper
Corundum	Diamond	Diaspore	Epidote	Iron	Mica	Nickeline	None	Olivine	Pentlandite
Perovskite	Potarite	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Sphalerite	Spinel	Titanite
Zircon

Arsenopyrite ()*	Augite ()*	Baddeleyite ()*	Bornite ()*	Bowieite ()*
Braggite ()*	Calcite ()*	Chalcopyrite ()*	Chromite ()*	Cooperite ()*
Cuproiridsite ()*	Cuprorhodsite ()*	Diamond ()*	Diopside ()*	Epidote ()*
Erlichmanite ()*	Forsterite ()*	Galena ()*	Gibbsite ()*	Goethite ()*
Gold ()*	Hematite ()*	Hongshiite ()*	Ilmenite ()*	Irarsite ()*
Iron ()*	Isoferroplatinum ()*	Keithconnite ()*	Laurite ()*	Maghemite ()*
Magnetite ()*	Miassite ()*	Osmium ()*	Pentlandite ()*	Perovskite ()*
Phlogopite ()*	Platinum ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Rutile ()*	Sphalerite ()*	Titanite ()*	Titanomaghemite ()*	Tremolite ()*
Tulameenite ()*	Vysotskite ()*	Wüstite ()*	Zircon ()*

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 As Au C Ca Cr Cu Fe H Ir K Mg Ni O Os Pb Pd Pt Rh Ru S Si Te Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Arsenopyrite Auricupride Baddeleyite Bowieite Calcite Chalcopyrite Clay Clinozoisite Copper
Corundum Diamond Diaspore Epidote Iron Mica Nickeline None Olivine Pentlandite
Perovskite Potarite Pyrite Pyroxene Quartz Rocksalt Rutile Sphalerite Spinel Titanite
Zircon

49 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	104877	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	104887	2060
Baddeleyite ()*	Baddeleyite	ZrO₂	1	104888	238
Bornite ()*	None	Cu₅FeS₄	1	104887	5516
Bowieite ()*	Bowieite	Rh₂S₃	1	104887	33
Braggite ()*	None	PdPt₃S₄	1	104888	101
Calcite ()*	Calcite	Ca(CO₃)	1	104876	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	104887	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	3	104872,104873,104887	3902
Cooperite ()*	None	PtS	2	104887,104888	124
Cuproiridsite ()*	Spinel	Cu(Ir³⁺Ir⁴⁺)S₄	1	104888	31
Cuprorhodsite ()*	Spinel	(Cu¹⁺_0.5Fe³⁺_0.5)Rh³⁺₂S₄	1	104888	34
Diamond ()*	Diamond	C	5	104874,104876,104879,104880,104885	697
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	104876	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	104877	8173
Erlichmanite ()*	Pyrite	OsS₂	2	104887,104888	110
Forsterite ()*	Olivine	Mg₂(SiO₄)	2	104877,104887	1188
Galena ()*	Rocksalt	PbS	1	104888	24243
Gibbsite ()*	None	Al(OH)₃	2	104877,104888	504
Goethite ()*	Diaspore	FeO(OH)	2	104877,104888	7437
Gold ()*	Copper	Au	1	104877	30554
Hematite ()*	Corundum	Fe₂O₃	3	104876,104877,104888	14640
Hongshiite ()*	None	PtCu	1	104888	27
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	3	104876,104877,104888	5433
Irarsite ()*	Pyrite	IrAsS	1	104888	154
Iron ()*	Iron	Fe	1	104876	1089
Isoferroplatinum ()*	Auricupride Perovskite	Pt₃Fe	2	104887,104888	128
Keithconnite ()*	None	Pd₂₀Te₇	1	104887	40
Laurite ()*	Pyrite	RuS₂	2	104887,104888	226
Maghemite ()*	Spinel	(Fe³⁺_0.67 _0.33)Fe³⁺₂O₄	1	104888	229
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	4	104876,104877,104887,104888	14899
Miassite ()*	None	Rh₁₇S₁₅	1	104887	10
Osmium ()*	None	Os	1	104888	169
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	1	104887	1512
Perovskite ()*	Perovskite	CaTiO₃	1	104876	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	104876	2273
Platinum ()*	Copper	Pt	1	104887	485
Pyrite ()*	Pyrite	FeS₂	2	104876,104877	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2	104876,104887	9056
Quartz ()*	Quartz	SiO₂	3	104877,104887,104888	61156
Rutile ()*	Rutile	TiO₂	3	104876,104877,104888	5614
Sphalerite ()*	Sphalerite	ZnS	1	104888	21482
Titanite ()*	Titanite	CaTi(SiO₄)O	1	104876	4899
Titanomaghemite ()*	Spinel	(Ti_0.5 _0.5)Fe³⁺₂O₄	1	104876	5
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	104877	2562
Tulameenite ()*	Potarite	Pt₂CuFe	2	104887,104888	48
Vysotskite ()*	None	PdS	2	104887,104888	53
Wüstite ()*	Rocksalt	FeO	1	104876	74
Zircon ()*	Zircon	Zr(SiO₄)	1	104888	5251

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...