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:
Day Book, Yancey Co., North Carolina, USA


mindat Locality ID: 146712
mindat URL: http://www.mindat.org/loc-146712.html

Tectonic Settings:

Total number of sublocalities beneath "Day Book, Yancey Co., North Carolina, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Day Book No. 1 (Day Book Chromite Prospect; Day Book Olivine Deposit; Ray Mine; Day Book Olivine Quarry; Day Book Quarry)
Day Book No. 2
Green Mountain Mine
Unimin Mine

Latitude: 35°58'0"N
Longitude: 82°16'58"W
Decimal Degree (lat, lon): 35.966666666667,-82.282777777778
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 C Ca Cr Cu Fe H K Mg O P Si U 

Elements from minerals reported directly at this locality: C Ca Mg O 

Structural Groups for minerals in this locality: 
AmphiboleAragoniteAutuniteCalciteChloriteClayEpidoteGarnetMicaNone
Not in a structural groupOlivinePalygorskitePyroxeneSerpentineSmectite-vermiculiteSpinelTalc

23 IMA Minerals at location:
Almandine  (*)Anthophyllite  (*)Antigorite  (*)Aragonite  (*)Autunite  (*)
Chromite  (*)Chrysotile  (*)Clinochlore  (*)Dolomite  (*)Enstatite  (*)
Fayalite  (*)Forsterite  (*)Huntite  (*)Magnesioferrite  (*)Magnesite  (*)
Magnetite  (*)Palygorskite  (*)Phlogopite  (*)Talc  (*)Torbernite  (*)
Tremolite  (*)Vermiculite  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)312531302353
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)23253128,253129,253130718
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)42253130,253131708
Aragonite  (*)AragoniteCa(CO3)03250
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O12531301272
Chromite  (*)SpinelFe2+Cr2O43253128,253129,2531303902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41253130951
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)812531301756
Dolomite  (*)NoneCaMg(CO3)209895
Enstatite  (*)PyroxeneMg2Si2O62253128,253129944
Fayalite  (*)OlivineFe2+2(SiO4)1253130371
Forsterite  (*)OlivineMg2(SiO4)12531311188
Huntite  (*)Not in a structural groupCaMg3(CO3)4125313069
Magnesioferrite  (*)SpinelMgFe3+2O4125312898
Magnesite  (*)CalciteMg(CO3)01487
Magnetite  (*)SpinelFe2+Fe3+2O4125313014899
Palygorskite  (*)Palygorskite Clay(Mg,Al)2Si4O10(OH)·4H2O1253130306
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)212531302273
Talc  (*)Clay TalcMg3Si4O10(OH)22253128,2531303337
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O12531301059
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)23253128,253129,2531302562
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O2253128,253129652
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12531301025


No ages have been assigned to this locality yet.
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