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:
Salpeterkop Mountain (Saltpetre Kop), Sutherland, Namakwa District (Namaqualand), Northern Cape, South Africa

Oldest recorded age at locality: 78.1
Youngest recorded age at locality: 71.3

mindat Locality ID: 27329
mindat URL: http://www.mindat.org/loc-27329.html

Tectonic Settings:

Total number of sublocalities beneath "Salpeterkop Mountain (Saltpetre Kop), Sutherland, Namakwa District (Namaqualand), Northern Cape, South Africa": 0
Total number of bottom-level sublocalities: 0

Latitude: 32°28'"S
Longitude: 20°49'60"E
Decimal Degree (lat, lon): -32.466666666667,20.833333333333

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.

Analcime	Baryte	Brookite	Calcite	Diaspore	Eudialyte	Fluorite	Gypsum	Natrolite	None
Quartz	Rutile	Tridymite	Zircon

Analcime ()*	Baryte ()*	Brookite ()*	Calcite ()*	Eudialyte ()*
Fluorite ()*	Goethite ()*	Gypsum ()*	Natrolite ()*	Nepheline ()*
Quartz ()*	Rutile ()*	Siderite ()*	Thorianite ()*	Thorite ()*
Xenotime-(Y) ()*

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 Ba C Ca Cl F Fe H K Na O P S Si Th Ti Y Zr

Elements from minerals reported directly at this locality: Al Ba C Ca Cl F Fe H K Na O P S Si Th Ti Y Zr

Structural Groups for minerals in this locality:
Analcime Baryte Brookite Calcite Diaspore Eudialyte Fluorite Gypsum Natrolite None
Quartz Rutile Tridymite Zircon

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	78.1	71.3	1627
Baryte ()*	Baryte	Ba(SO₄)	78.1	71.3	11547
Brookite ()*	Brookite	TiO₂	78.1	71.3	700
Calcite ()*	Calcite	Ca(CO₃)	78.1	71.3	27770
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	78.1	71.3	182
Fluorite ()*	Fluorite	CaF₂	78.1	71.3	9617
Goethite ()*	Diaspore	FeO(OH)	78.1	71.3	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	78.1	71.3	6890
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	78.1	71.3	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	78.1	71.3	884
Quartz ()*	Quartz	SiO₂	78.1	71.3	61156
Rutile ()*	Rutile	TiO₂	78.1	71.3	5614
Siderite ()*	Calcite	Fe(CO₃)	78.1	71.3	6417
Thorianite ()*	Fluorite	ThO₂	78.1	71.3	236
Thorite ()*	Zircon	Th(SiO₄)	78.1	71.3	1006
Xenotime-(Y) ()*	Zircon	Y(PO₄)	78.1	71.3	939

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000672	MAGMATIC STYLE: Irregular intrusion and thin dykes. ASSOCIATED SILICATE ROCKS: Breccias, tuff, trachyte, olivine melilitite dykes and sills and pyroclastic kimberlite.
Jen_0000673	MAGMATIC STYLE: Irregular intrusion and thin dykes. ASSOCIATED SILICATE ROCKS: Breccias, tuff, trachyte, olivine melilitite dykes and sills and pyroclastic kimberlite.
Jen_0000674	MAGMATIC STYLE: Irregular intrusion and thin dykes. ASSOCIATED SILICATE ROCKS: Breccias, tuff, trachyte, olivine melilitite dykes and sills and pyroclastic kimberlite.

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Jen_0000672	74.6	74.6	74.6			27329	Salpeterkop Mountain (Saltpetre Kop), Sutherland, Namakwa District (Namaqualand), Northern Cape, South Africa	Saltpeterkop	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000673	78.1	75.5	76.8±1.3	K-Ar	melilite	27329	Salpeterkop Mountain (Saltpetre Kop), Sutherland, Namakwa District (Namaqualand), Northern Cape, South Africa	Saltpeterkop	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000674	73.7	71.3	72.5±1.2	K-Ar	melilite	27329	Salpeterkop Mountain (Saltpetre Kop), Sutherland, Namakwa District (Namaqualand), Northern Cape, South Africa	Saltpeterkop	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...