Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Rockingham Co., North Carolina, USA

Oldest recorded age at locality: 331.23
Youngest recorded age at locality: 297.23

mindat Locality ID: 102647
mindat URL: http://www.mindat.org/loc-102647.html

Tectonic Settings:

Total number of sublocalities beneath "Rockingham Co., North Carolina, USA": 31
Total number of bottom-level sublocalities: 27

Number of Child Localities: 27
Child Localities:
Apple Occurrence
Cascade
Chilton-Van Noppen Mine
Chilton-Webster Mine
Clifton Mine
Cox Prospect
Dannemora Mine
Ernest Smith Mines
Grapevine Mine
Holland Mine (Sugarcreek Pit)
Hopkins Occurrence
Knight Mine
Madison
Madison Pomona Mine
Mayodan
Price
Reidsville Quarry
Rosa Evans Mine
Shaw Mine
Short Tom Smith Mine (Ben Smith Mine)
Smiths Mountain Meteorite
Stoneville Quarry
Tyler Holland Mine
W. T. Smith Mine (Long Tom Smith Mine)
Wade Williamson Mine
Webster Brick Mines (Rockingham County Mines; Draper Mine)
Young-Webb Mine

Latitude: 36°26'57"N
Longitude: 79°53'45"W
Decimal Degree (lat, lon): 36.449166666667,-79.895833333333

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	Autunite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum	Epidote	Feldspar
Fluorite	Garnet	Iron	Kaolinite	Mica	None	Not in a structural group	Pyroxene	Quartz	Rocksalt
Scacchite	Spinel	Titanite	Zircon

Actinolite ()*	Albite ()*	Almandine ()*	Anorthite ()*	Augite ()*
Autunite ()*	Calcite ()*	Chalcopyrite ()*	Chromite ()*	Clinozoisite ()*
Daubréelite ()*	Epidote ()*	Fluorite ()*	Gold ()*	Halite ()*
Hematite ()*	Iron ()*	Kaolinite ()*	Kyanite ()*	Lawrencite ()*
Magnetite ()*	Microcline ()*	Muscovite ()*	Orthoclase ()*	Platinum ()*
Quartz ()*	Schreibersite ()*	Sillimanite ()*	Spessartine ()*	Taenite ()*
Titanite ()*	Troilite ()*	Uraninite ()*	Uranophane-α ()*	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 Au C Ca Cl Cr Cu F Fe H K Mg Mn Na Ni O P Pt S Si Ti U Zr

Elements from minerals reported directly at this locality: Al Au Ca Cl Cr Cu Fe H Mg Na O Pt S Si Zr

Structural Groups for minerals in this locality:
Amphibole Autunite Calcite Chalcopyrite Clay Clinozoisite Copper Corundum Epidote Feldspar
Fluorite Garnet Iron Kaolinite Mica None Not in a structural group Pyroxene Quartz Rocksalt
Scacchite Spinel Titanite Zircon

35 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	331.23	297.23	0		3419
Albite ()*	Feldspar	Na(AlSi₃O₈)			2	252500,252509	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	252501	2353
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	331.23	297.23	0		1036
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	331.23	297.23	0		2060
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			1	252500	1272
Calcite ()*	Calcite	Ca(CO₃)			1	252509	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	331.23	297.23	0		27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	331.23	297.23	0		3902
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	331.23	297.23	0		1025
Daubréelite ()*	Spinel	FeCr₂S₄			2	252503,252506	157
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	331.23	297.23	0		8173
Fluorite ()*	Fluorite	CaF₂			1	252509	9617
Gold ()*	Copper	Au	331.23	297.23	0		30554
Halite ()*	Rocksalt	NaCl	331.23	297.23	0		1398
Hematite ()*	Corundum	Fe₂O₃			1	252511	14640
Iron ()*	Iron	Fe			3	252503,252506,252513	1089
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	331.23	297.23	1	252512	5591
Kyanite ()*	Not in a structural group	Al₂OSiO₄			1	252508	1507
Lawrencite ()*	Scacchite	FeCl₂			1	252503	30
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			4	252489,252495,252499,252511	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)			2	252493,252509	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	331.23	297.23	6	252493,252496,252497,252500,252509,252512	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	331.23	297.23	1	252512	2349
Platinum ()*	Copper	Pt	331.23	297.23	0		485
Quartz ()*	Quartz	SiO₂	331.23	297.23	7	252493,252496,252500,252509,252510,252512,252516	61156
Schreibersite ()*	None	(Fe,Ni)₃P			3	252503,252506,252513	374
Sillimanite ()*	Not in a structural group	Al₂SiO₅	331.23	297.23	0		1516
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	331.23	297.23	3	252500,252510,252512	1214
Taenite ()*	None	(Ni,Fe)			2	252503,252513	703
Titanite ()*	Titanite	CaTi(SiO₄)O			1	252509	4899
Troilite ()*	None	FeS			3	252503,252506,252513	1044
Uraninite ()*	Fluorite	UO₂			1	252500	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O			1	252500	890
Zircon ()*	Zircon	Zr(SiO₄)	331.23	297.23	0		5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	USGS-Rb-Sr-02303	331.23	297.23	314.23±17	Rb-Sr			muscovite				Muscovite			102059	Short Tom Smith Mine (Ben Smith Mine), Rockingham Co., North Carolina, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...