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:
Hawk-Bakersville, Spruce Pine District, Mitchell Co., North Carolina, USA

Oldest recorded age at locality: 367
Youngest recorded age at locality: 365

mindat Locality ID: 102635
mindat URL: http://www.mindat.org/loc-102635.html

Tectonic Settings:

Total number of sublocalities beneath "Hawk-Bakersville, Spruce Pine District, Mitchell Co., North Carolina, USA": 34
Total number of bottom-level sublocalities: 34

Number of Child Localities: 34
Child Localities:
Azaline Mica Mine
Bardon Mica Mine (Bordon Mine)
Ben Cox Feldspar - Mica Mine
Ben Mica Prospect
Bergen Rock Mica Mine
Bill Greene Mica Mine
Boise Slick Mica Mine
Branch Feldspar-Mica Mine (Zach Young Mine)
Buckeye Mica Mine
Bud Mica Mine
Cain Twiggs Mica Prospect
Carter Buchanan Mica Mine
Charles Stamey Feldspar Mine
Chet Green Mica Mine
Clarissa Mica Mine
Delia Buchanan Mica Mine
Dellinger Mica Mine
Dewey McKinney Mica Prospect
Dobie And Ross Buchanan Feldspar Mine
Fate Buchanan Mica Mine
Hawk Flat Mica Mine
Hawk Mine
Ivy Knob Mica Prospect
J. K. Buchanan Mica Mine (Milt Wilson Mine)
Jack Rock Mica Mine
Little Hawk Mica Mine
Mossy Rocky Mica Mine
Paul McMahan Mica Prospect
Paul Mica Prospect (Sol Biddix Prospect)
Potato Hill Mica Mine
R. P. Greene Mica Prospect
Roby Mica Mine (Tim Twiggs Mine)
Twiggs Mica Mine
W. C. Burleson Mica Mine (Joe Stevenson Mine)

Latitude: 36°1'25"N
Longitude: 82°5'45"W
Decimal Degree (lat, lon): 36.023611111111,-82.095833333333

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.

Amorphous	Clay	Clinozoisite	Epidote	Feldspar	Garnet	Kaolinite	Mica	Nickeline	None
Not in a structural group	Pyrite	Quartz	Smectite-vermiculite	Spinel

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 Ca Fe H K Mg Mn Na O S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Clay Clinozoisite Epidote Feldspar Garnet Kaolinite Mica Nickeline None
Not in a structural group Pyrite Quartz Smectite-vermiculite Spinel

13 IMA Minerals at location:

Albite ()*	Epidote ()*	Gahnite ()*	Kaolinite ()*	Kyanite ()*
Muscovite ()*	Opal ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Spessartine ()*	Vermiculite ()*	Zoisite ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	367	365	1	252072	8803
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	367	365	4	252058,252072,252082,252083	8173
Gahnite ()*	Spinel	ZnAl₂O₄	367	365	1	252084	445
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	367	365	3	252064,252066,252067	5591
Kyanite ()*	Not in a structural group	Al₂OSiO₄	367	365	2	252070,252074	1507
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	367	365	34	252051,252052,252053,252054,252055,252056,252057,252058,252059,252060,252061,252062,252063,252064,252065,252066,252067,252068,252069,252070,252071,252072,252073,252074,252075,252076,252077,252078,252079,252080,252081,252082,252083,252084	17380
Opal ()*	Amorphous	SiO₂·nH₂O	367	365	2	252062,252084	2994
Pyrite ()*	Pyrite	FeS₂	367	365	6	252052,252072,252077,252082,252083,252084	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	367	365	1	252072	9056
Quartz ()*	Quartz	SiO₂	367	365	23	252051,252052,252054,252055,252057,252062,252064,252066,252067,252068,252070,252071,252072,252073,252074,252075,252076,252077,252078,252080,252081,252082,252083	61156
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	367	365	1	252072	1214
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	367	365	4	252053,252062,252063,252071	652
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	367	365	1	252072	1025

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
	Bradley_2012_164	367	365	366±1	U/Pb			zircon			Yes	Zircon			49771	McHone Mine Pegmatite, Spruce Pine District, Mitchell Co., North Carolina, USA	McHone	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...