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:
Randolph Co., North Carolina, USA

mindat Locality ID: 24601
mindat URL: http://www.mindat.org/loc-24601.html

Tectonic Settings:

Total number of sublocalities beneath "Randolph Co., North Carolina, USA": 64
Total number of bottom-level sublocalities: 58

Number of Child Localities: 24
Child Localities:
Ashboro
Asheboro
Asheboro Quarry
Branson Mine
Carolina Pyrophyllite Mine
Carolina Slate Belt
Colburn Mine (Coburn)
Copple; Spencer And Ruth Gold Placer No. 1 (River)
Deep River Prospect
Dowd Mine
Fox Mountain Prospect
Fox-Iron Mountains
Gold Bowl Mine (Pugh)
Laughlin Mine (Lytton; Brown Hill; Delph; Delk; Delft; Empire; Miller)
Mine Number 1
Mine Number 2 (Cagle Brothers Mine)
Pierce Mountain Mine
Pilot Mountain
Pilot Mountain Prospect
Quarry (MRDS - 10152282)
Quarry (MRDS - 10223937)
Staley
Uwharrie Meteorite
Wright Quarry

Latitude: 35°42'7"N
Longitude: 79°48'25"W
Decimal Degree (lat, lon): 35.701944444444,-79.806944444444

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	Andalusite	Apatite	Arsenopyrite	Baryte	Calcite	Chalcopyrite	Chloritoid	Clay	Clinozoisite
Copper	Corundum	Covellite	Diaspore	Epidote	Feldspar	Fluorite	Iron	Kaolinite	Löllingite
Lazulite	Malachite	Melonite	Mica	Molybdenite	Natrolite	Nickeline	None	Pyrite	Pyrophyllite
Quartz	Rocksalt	Rutile	Sphalerite	Spinel	Talc	Topaz	Wavellite	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: Ag Al As Au Ba C Ca Cr Cu F Fe H K Mg Mn Mo N Na Ni O P Pb S Si Te Ti Zn Zr

Elements from minerals reported directly at this locality: As C Fe O

Structural Groups for minerals in this locality:
Amphibole Andalusite Apatite Arsenopyrite Baryte Calcite Chalcopyrite Chloritoid Clay Clinozoisite
Copper Corundum Covellite Diaspore Epidote Feldspar Fluorite Iron Kaolinite Löllingite
Lazulite Malachite Melonite Mica Molybdenite Natrolite Nickeline None Pyrite Pyrophyllite
Quartz Rocksalt Rutile Sphalerite Spinel Talc Topaz Wavellite Zircon

54 IMA Minerals at location:

Actinolite ()*	Andalusite ()*	Arsenopyrite ()*	Baryte ()*	Bornite ()*
Calaverite ()*	Calcite ()*	Carlsbergite ()*	Chalcocite ()*	Chalcopyrite ()*
Chloritoid ()*	Clinozoisite ()*	Covellite ()*	Daubréelite ()*	Diaspore ()*
Dolomite ()*	Epidote ()*	Fluellite ()*	Fluorapatite ()*	Fluorite ()*
Galena ()*	Goethite ()*	Gold ()*	Hematite ()*	Ilmenite ()*
Iron ()*	Kaolinite ()*	Lazulite ()*	Löllingite ()*	Magnetite ()*
Malachite ()*	Molybdenite ()*	Muscovite ()*	Natrolite ()*	Orthoclase ()*
Ottrélite ()*	Phlogopite ()*	Pyrite ()*	Pyrophyllite ()*	Pyrrhotite ()*
Quartz ()*	Rutile ()*	Schreibersite ()*	Siderite ()*	Silver ()*
Sphalerite ()*	Taenite ()*	Talc ()*	Topaz ()*	Tremolite ()*
Troilite ()*	Variscite ()*	Wavellite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	# 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	2	252443,252451	3419
Andalusite ()*	Andalusite	Al₂SiO₅	5	252428,252468,252471,252475,252476	1310
Arsenopyrite ()*	Arsenopyrite	FeAsS	2	252430,252439	9052
Baryte ()*	Baryte	Ba(SO₄)	1	252428	11547
Bornite ()*	None	Cu₅FeS₄	1	252420	5516
Calaverite ()*	Melonite	AuTe₂	1	252419	361
Calcite ()*	Calcite	Ca(CO₃)	6	252430,252438,252439,252454,252456,252476	27770
Carlsbergite ()*	Rocksalt	CrN	1	252477	26
Chalcocite ()*	None	Cu₂S	1	252451	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	10	252430,252436,252438,252439,252442,252448,252451,252454,252457,252476	27198
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂	3	252468,252471,252476	376
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1	252439	1025
Covellite ()*	Covellite	CuS	1	252451	4165
Daubréelite ()*	Spinel	FeCr₂S₄	1	252477	157
Diaspore ()*	Diaspore	AlO(OH)	2	252428,252475	481
Dolomite ()*	None	CaMg(CO₃)₂	1	252438	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	7	252430,252432,252438,252439,252451,252452,252468	8173
Fluellite ()*	None	Al₂(PO₄)F₂(OH)·7H₂O	1	252428	40
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	252428	2740
Fluorite ()*	Fluorite	CaF₂	2	252459,252468	9617
Galena ()*	Rocksalt	PbS	3	252420,252450,252451	24243
Goethite ()*	Diaspore	FeO(OH)	5	252416,252430,252446,252450,252464	7437
Gold ()*	Copper	Au	33	252417,252419,252420,252427,252430,252432,252433,252434,252435,252437,252438,252439,252440,252441,252443,252444,252446,252447,252448,252449,252450,252452,252453,252454,252455,252457,252460,252462,252463,252464,252467,252469,252470	30554
Hematite ()*	Corundum	Fe₂O₃	17	252419,252422,252430,252432,252434,252438,252439,252441,252443,252444,252446,252448,252450,252455,252462,252464,252476	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	252448	5433
Iron ()*	Iron	Fe	1	252477	1089
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	9	252427,252435,252441,252444,252446,252453,252455,252468,252474	5591
Lazulite ()*	Lazulite	MgAl₂(PO₄)₂(OH)₂	3	252428,252475,252476	232
Löllingite ()*	Löllingite	FeAs₂	0		762
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	9	252427,252432,252434,252439,252441,252442,252448,252455,252456	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	252451	12537
Molybdenite ()*	Molybdenite	MoS₂	2	252459,252470	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	33	252417,252419,252424,252427,252430,252432,252433,252435,252437,252438,252439,252440,252441,252443,252444,252446,252448,252449,252450,252451,252452,252453,252454,252455,252456,252457,252459,252460,252463,252464,252469,252474,252476	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	1	252454	1236
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	2	252420,252448	2349
Ottrélite ()*	Chloritoid	Mn²⁺Al₂O(SiO₄)(OH)₂	2	252428,252475	59
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	4	252427,252441,252444,252456	2273
Pyrite ()*	Pyrite	FeS₂	39	252417,252419,252420,252422,252424,252428,252430,252432,252433,252434,252435,252436,252437,252438,252439,252440,252441,252442,252443,252444,252446,252448,252449,252450,252451,252452,252453,252454,252456,252457,252459,252460,252462,252463,252469,252470,252471,252475,252476	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	9	252428,252432,252437,252450,252462,252469,252471,252475,252476	771
Pyrrhotite ()*	Nickeline	Fe₇S₈	3	252452,252454,252456	9056
Quartz ()*	Quartz	SiO₂	37	252419,252420,252422,252427,252428,252430,252432,252433,252435,252436,252437,252438,252439,252440,252441,252442,252443,252444,252446,252448,252449,252450,252451,252452,252453,252454,252456,252457,252459,252460,252462,252463,252464,252469,252471,252475,252476	61156
Rutile ()*	Rutile	TiO₂	2	252428,252468	5614
Schreibersite ()*	None	(Fe,Ni)₃P	1	252477	374
Siderite ()*	Calcite	Fe(CO₃)	0		6417
Silver ()*	Copper	Ag	1	252419	5186
Sphalerite ()*	Sphalerite	ZnS	3	252420,252450,252451	21482
Taenite ()*	None	(Ni,Fe)	1	252477	703
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	252443	3337
Topaz ()*	Topaz	Al₂SiO₄F₂	3	252468,252471,252476	1476
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	252443	2562
Troilite ()*	None	FeS	1	252477	1044
Variscite ()*	None	Al(PO₄)·2H₂O	1	252428	301
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O	1	252428	374
Zircon ()*	Zircon	Zr(SiO₄)	1	252459	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...