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:
McHone Mine Pegmatite, Spruce Pine District, Mitchell Co., North Carolina, USA

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

mindat Locality ID: 49771
mindat URL: http://www.mindat.org/loc-49771.html

Tectonic Settings:

Total number of sublocalities beneath "McHone Mine Pegmatite, Spruce Pine District, Mitchell Co., North Carolina, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 35°53'55"N
Longitude: 82°4'59"W
Decimal Degree (lat, lon): 35.898611111111,-82.083055555556

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	Beryl	Clay	Columbite	Feldspar	Fluorite	Mica	None	Not in a structural group	Pyroxene
Topaz	Tourmaline

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 B Be Ca Cs F Fe H K Li Mn Na Nb O Si

Elements from minerals reported directly at this locality: Al B Be Ca Cs F Fe H K Li Mn Na Nb O Si

Structural Groups for minerals in this locality:
Analcime Beryl Clay Columbite Feldspar Fluorite Mica None Not in a structural group Pyroxene
Topaz Tourmaline

11 IMA Minerals at location:

Albite ()*	Beryl ()*	Columbite-(Mn) ()*	Fluorite ()*	Microcline ()*
Muscovite ()*	Petalite ()*	Pollucite ()*	Schorl ()*	Spodumene ()*
Topaz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	367	365	8803
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	367	365	4286
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	367	365	289
Fluorite ()*	Fluorite	CaF₂	367	365	9617
Microcline ()*	Feldspar	K(AlSi₃O₈)	367	365	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	367	365	17380
Petalite ()*	Not in a structural group	LiAlSi₄O₁₀	367	365	124
Pollucite ()*	Analcime	Cs(Si₂Al)O₆·nH₂O	367	365	140
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	367	365	2705
Spodumene ()*	Pyroxene	LiAlSi₂O₆	367	365	688
Topaz ()*	Topaz	Al₂SiO₄F₂	367	365	1476

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				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...