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:
Sparta, Alleghany Co., North Carolina, USA

mindat Locality ID: 29218
mindat URL: http://www.mindat.org/loc-29218.html

Tectonic Settings:

Total number of sublocalities beneath "Sparta, Alleghany Co., North Carolina, USA": 3
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Bald Knob
T. L. Crouse Farm

Latitude: 36°32'57"N
Longitude: 81°5'42"W
Decimal Degree (lat, lon): 36.549166666667,-81.095

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.

Allophane	Amphibole	Apatite	Calcite	Chalcopyrite	Chlorite	Clay	Cobaltite	Corundum	Feldspar
Garnet	Humite	Mica	Nickeline	None	Olivine	Pyrite	Quartz	Rhodonite	Rocksalt
Rutile	Serpentine	Spinel	Stilpnomelane

Actinolite ()*	Alabandite ()*	Albite ()*	Alleghanyite ()*	Andradite ()*
Anthophyllite ()*	Bementite ()*	Calcite ()*	Caryopilite ()*	Cattierite ()*
Chalcopyrite ()*	Clino-suenoite ()*	Cobaltite ()*	Cummingtonite ()*	Fluorapatite ()*
Galaxite ()*	Grunerite ()*	Jacobsite ()*	Kellyite ()*	Kutnohorite ()*
Linnaeite ()*	Magnetite ()*	Manganhumite ()*	Margarite ()*	Muscovite ()*
Neotocite ()*	Pennantite ()*	Phlogopite ()*	Pyrite ()*	Pyrolusite ()*
Pyrophanite ()*	Pyroxmangite ()*	Pyrrhotite ()*	Quartz ()*	Rhodochrosite ()*
Rhodonite ()*	Slawsonite ()*	Sonolite ()*	Spessartine ()*	Stilpnomelane ()*
Tephroite ()*

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 As C Ca Co Cu F Fe H K Mg Mn Na O P S Si Sr Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Amphibole Apatite Calcite Chalcopyrite Chlorite Clay Cobaltite Corundum Feldspar
Garnet Humite Mica Nickeline None Olivine Pyrite Quartz Rhodonite Rocksalt
Rutile Serpentine Spinel Stilpnomelane

41 IMA Minerals at location:

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	1	249121	3419
Alabandite ()*	Rocksalt	MnS	1	249121	312
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	249121	8803
Alleghanyite ()*	Humite	Mn²⁺₅(SiO₄)₂(OH)₂	1	249121	77
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	249121	1534
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	249121	718
Bementite ()*	Clay	Mn₇Si₆O₁₅(OH)₈	1	249121	173
Calcite ()*	Calcite	Ca(CO₃)	1	249121	27770
Caryopilite ()*	Clay Serpentine	Mn²⁺₃Si₂O₅(OH)₄	1	249121	83
Cattierite ()*	Pyrite	CoS₂	1	249121	30
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	249121	27198
Clino-suenoite ()*	Amphibole	Mn²⁺₂Mg₅Si₈O₂₂(OH)₂	2	249121	57
Cobaltite ()*	Cobaltite	CoAsS	1	249121	966
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	249121	327
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	249121	2740
Galaxite ()*	Spinel	Mn²⁺Al₂O₄	1	249121	43
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	1	249121	223
Jacobsite ()*	Spinel	Mn²⁺Fe³⁺₂O₄	1	249121	172
Kellyite ()*	Clay Serpentine	(Mn²⁺,Mg,Al)₃(Si,Al)₂O₅(OH)₄	1	249121	11
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂	1	249121	234
Linnaeite ()*	Spinel	Co²⁺Co³⁺₂S₄	1	249121	249
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	249121	14899
Manganhumite ()*	Humite	Mn²⁺₇(SiO₄)₃(OH)₂	1	249121	14
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	1	249121	168
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	249121	17380
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)	1	249121	186
Pennantite ()*	Chlorite Clay	Mn²⁺₅Al(Si₃Al)O₁₀(OH)₈	1	249121	25
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	249121	2273
Pyrite ()*	Pyrite	FeS₂	1	249121	39462
Pyrolusite ()*	Rutile	MnO₂	1	249121	3106
Pyrophanite ()*	Corundum	Mn²⁺TiO₃	1	249121	244
Pyroxmangite ()*	None	Mn²⁺SiO₃	1	249121	147
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	249121	9056
Quartz ()*	Quartz	SiO₂	2	249121,249122	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	1	249121	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	1	249121	969
Slawsonite ()*	None	Sr(Al₂Si₂O₈)	1	249120	12
Sonolite ()*	Humite	Mn²⁺₉(SiO₄)₄(OH)₂	1	249121	50
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	1	249121	1214
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	1	249121	456
Tephroite ()*	Olivine	Mn²⁺₂(SiO₄)	1	249121	240

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R060904	Bald Knob, Sparta, Alleghany Co., North Carolina, USA	https://rruff.info/R060904
R140320	Bald Knob, Sparta, Alleghany Co., North Carolina, USA	https://rruff.info/R140320
R060903	Bald Knob, Sparta, Alleghany Co., North Carolina, USA	https://rruff.info/R060903
FKM-243	Bald Knob Deposit (Primary Ore Body; Crouse Knob Deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA	https://www.rockptx.com/fkm-226-to-fkm-250/#FKM-243

All locality data graciously provided by mindat.org

All age data...