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:
Powhatan Co., Virginia, USA

mindat Locality ID: 26425
mindat URL: http://www.mindat.org/loc-26425.html

Tectonic Settings:

Total number of sublocalities beneath "Powhatan Co., Virginia, USA": 16
Total number of bottom-level sublocalities: 14

Number of Child Localities: 11
Child Localities:
Clinton Dolphin Mine
Colman Jones Farm
Farley Mine
Flat Rock
Herbb No. 1 Mine
Jefferson
Judes Ferry Farm Mine (Baltzley 3 Mine; Jervey Mine)
Macon
Potomac River
Powhatan Quarry
Roadcut

Latitude: 37°32'43"N
Longitude: 77°47'48"W
Decimal Degree (lat, lon): 37.545277777778,-77.796666666667

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	Beryl	Clay	Columbite	Corundum	Feldspar	Garnet	Kaolinite	Mica	None
Not in a structural group	Quartz	Rutile	Topaz	Tourmaline	Zircon

Albite ()*	Bertrandite ()*	Beryl ()*	Cassiterite ()*	Dickite ()*
Euxenite-(Y) ()*	Graphite ()*	Ilmenite ()*	Kaolinite ()*	Microcline ()*
Muscovite ()*	Opal ()*	Quartz ()*	Samarskite-(Y) ()*	Schorl ()*
Spessartine ()*	Tantalite-(Mn) ()*	Topaz ()*	Wodginite ()*	Xenotime-(Y) ()*
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 B Be C Ca Ce F Fe H K Mn Na Nb O P Si Sn Ta Th Ti U Y Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Beryl Clay Columbite Corundum Feldspar Garnet Kaolinite Mica None
Not in a structural group Quartz Rutile Topaz Tourmaline Zircon

21 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	2	282266,282269	8803
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	1	282266	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	4	282264,282266,282270,282272	4286
Cassiterite ()*	Rutile	SnO₂	1	282266	5171
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1	282266	651
Euxenite-(Y) ()*	Columbite	Y(NbTi)O₆	1	282269	414
Graphite ()*	None	C	1	282271	2812
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	282266	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2	282266,282269	5591
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	282266	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	5	282262,282264,282266,282269,282270	17380
Opal ()*	Amorphous	SiO₂·nH₂O	2	282263,282266	2994
Quartz ()*	Quartz	SiO₂	6	282264,282266,282267,282269,282272,282273	61156
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈	1	282269	353
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	282268	2705
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	1	282266	1214
Tantalite-(Mn) ()*	Columbite	Mn²⁺Ta₂O₆	1	282266	211
Topaz ()*	Topaz	Al₂SiO₄F₂	1	282266	1476
Wodginite ()*	Columbite	Mn²⁺Sn⁴⁺Ta₂O₈	1	282266	78
Xenotime-(Y) ()*	Zircon	Y(PO₄)	1	282275	939
Zircon ()*	Zircon	Zr(SiO₄)	1	282266	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...