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Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, State Line Chromite District, Lancaster Co., Pennsylvania, USAi
Regional Level Types
Wood's Chrome Mine (Wood's Mine)Mine
Texas- not defined -
Little Britain TownshipTownship
State Line Chromite DistrictMining District
Lancaster Co.County
PennsylvaniaState
USACountry

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Latitude & Longitude (WGS84): 39° 43' 54'' North , 76° 6' 24'' West
Latitude & Longitude (decimal): 39.73167,-76.10667
GeoHash:G#: dr1fh0uvd
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate


A former Cr mine located near Texas, approximately 6 miles NE of Rising Sun, MD, USA. Note: Texas is rarely designated on most regional maps.

Mineralization is a Cr deposit hosted in serpentine.

As of Summer 2012, the property/mine is closed to collectors.

Zaratite from Lancaster Co. was proven to be gaspéite.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Wood's Chrome Mine (Wood's Mine), Texas, Little Britain Township, Lancaster Co., Pennsylvania, USA

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


27 valid minerals.

Detailed Mineral List:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Habit: thin lamellar, laminae easily separable into translucent folia
Colour: leek green to violet in "chromium" variety
Description: Antigorite occurs both with typical leek green coloration and the violet coloration of so named "Chromium" Antigorite. Specimens of Chromium Antigorite were often reffered to as Kammererite, or Chromium Clinoclore, but this is inaccurate. (see www.pennminerals.com/museum.htm for a good image of an actual, and very rare, Kammererite from Woods Chrome). Specimens of Chromium Antigorite from this occurance even fall somewhat short of a true Antigorite identity, but is closest to this family member of the Sepentine group.
Reference: Mineralogy of Pennsylvania - 1922; Samuel S. Gordon Pg.124; American Mineralogist, vol 44, p 651-656
Antigorite var: Williamsite
Formula: Mg3(Si2O5)(OH)4
Habit: micro-fiberous
Colour: Apple green to Emerald green
Description: A beautiful Apple Green variety, Williamsite, first described at Woods Chrome in 1849 by Lewis W. Williams, whom also first described Zaratite (Emerald Nickel) the same year. Williamsite is a semi-precious variety of Sepentine, usually in association with chromite.
Reference: Samuel G. Gordon (1922) The Mineralogy of Pennsylvania. Pg. 204. Dana 6:1069.
Aragonite
Formula: CaCO3
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 190; Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Brucite
Formula: Mg(OH)2
Habit: tabular plates with pseudo-hexagonal edging. usually foliaed masses
Colour: white to pale green, pearly to waxy luster, transparent in thin sections/plates
Fluorescence: bright blue-white response
Description: Worlds finest locality for the Brucite, hosting the largest crystal ever found (to 0.2m). Crystals from here are rich and well developed, in numerous modifications including large tabular crystals and occasional groups in rosettes. coloration from this locale tends towards pale green coloration in the richest specimens.
Reference: Ref1) Dana 6: 1069. Ref2) Mineralogy; J. Sinkankas, 1964 pg. 339 Ref3) Preliminary Report on The Mineralogy of Pennsylvania 1874; F. A. Genth; pg. 51
Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Calcite
Formula: CaCO3
Reference: Dana 6:1069.
Chromite
Formula: Fe2+Cr3+2O4
Habit: massive, fine grained. frequent admixture with Serpentine
Colour: Blackish grey
Fluorescence: none
Description: Chromite, the Major ore at Wood's Mine. By 1874 report, Chromite production in PA was already waining, however the production to date at Wood's Mine of 120,000 tons, exceeded 20 times the production of all other PA chomite mining localities combined.
Reference: Dana 6: 1069. ref2) 2nd Geological Survey of Pennsylvania, Preliminary report 1874; F. A. Genth, Pgs. 39-43
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Reference: The Mineralogy of Pennsylvania - 1922; Samual G. Gondon
'Deweylite'
Formula: Mg4Si3O10 · 6H2O ?
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Dolomite
Formula: CaMg(CO3)2
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania; Dana 6:1069.
Dozyite
Formula: Mg7Al2(Al2Si4O15)(OH)12
Reference: Bailey, S.W., Banfield, J.F., Barker, W.W., and Katchan, G. (1995): American Mineralogist 80, 65-77.
Enstatite
Formula: MgSiO3
Reference: Dana 6:1069.
Forsterite
Formula: Mg2SiO4
Reference: Ref.: Reed, Juliet C. (1976), Annotated Biblio. of Minerals New to the PA List 1965-1974, The Min. Soc. of PA, Inc.: 40; Gordon, Samuel G. (1922), Mineralogy of PA: 88.
Hematite
Formula: Fe2O3
Reference: Dana 6:1069.
Hydromagnesite
Formula: Mg5(CO3)4(OH)2 · 4H2O
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 273; Mineralogy of Pennsylvania, S. Gordon pg. 69 (ref. Smith and Brush, 1853, 214)
Ilmenite
Formula: Fe2+TiO3
Reference: Dana 6:1069.
'Lancasterite'
Reference: Gordon, Mineralogy of Pennsylvania, p. 205 (1922)
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: The Mineralogy of Pennsylvania 1922-1965; A. Montgomery pg. 55 (MSP Newsletter, June, 1963, pg. 8. PM8)
Magnesiochromite
Formula: MgCr2O4
Reference: No reference listed
Magnesite
Formula: MgCO3
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania; Dana 6:1069.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Maucherite
Formula: Ni11As8
Reference: Smith, II, R. C. and Speer, J. A. (1980) Pennsylvania Minerals VI: Maucherite Ni11AS8, from the State Line District, Lancastetr County, PA, FM PA Chapter Newsletter, v. 8 no. 3, p. 7-11 plus addendum no. 4, p. 6
Millerite
Formula: NiS
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania; Dana 6:1069.
'Pimelite'
Formula: Ni3Si4O10(OH)2·4H2O
Reference: Gaines et al. 1997, Dana's System of Mineralogy
Pyrite
Formula: FeS2
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Pyroaurite
Formula: Mg6Fe3+2(OH)16[CO3] · 4H2O
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Quartz
Formula: SiO2
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Quartz var: Chalcedony
Formula: SiO2
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Habit: crystaline Massive
Colour: brilliant green
Fluorescence: none
Description: Type locality for variety "Williamsite", a gemmy bright green serpentine often used as a semi-precious stone. Often associated with Chromite at this locality. discovered in 1849 by Lewis W. Williams, whom also first described Zaratite (Emerald Nickel) at Wood's Chrome Mine the same year.
Reference: Dana 6:1069. Ref2) American Republican, Jan. 2nd 1849 (Chester Co., Newspaper)
'Serpentine Subgroup var: Marmolite'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Dana 6:1069.
'Serpentine Subgroup var: Picrolite'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: Mineralogy of Pennsylvania-1922; Samuel S. Gordon, pg. 122
Uvarovite
Formula: Ca3Cr2(SiO4)3
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania; Dana 6:1069.
Vesuvianite
Formula: (Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Reference: Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
Zaratite
Formula: Ni3(CO3)(OH)4 · 4H2O ?
Habit: crystaline massive veins and coatings typical, admixture with Dolomite
Colour: Brilliant Green
Fluorescence: none
Description: Lewis W. Williams first described Zaratite, as "Emerald Nickel" at Wood's Chrome Mine in 1849, nearly making Wood's Chome Mine "Type Locale" for the species. (TL: Spain 1851) Frequently occuring in admixture with micro crystals of dolomite, referred to localy as "pennite".
Reference: American Republican, Jan. 2nd 1849 (Chester Co., Newspaper); 2nd geological Survey of Pennsylvania Preliminary Report 1874, F. A. Genth, Pg 156B; Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 1069; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 246.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Maucherite'2.AB.15Ni11As8
'Millerite'2.CC.20NiS
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Brucite'4.FE.05Mg(OH)2
Chromite4.BB.05Fe2+Cr3+2O4
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnesiochromite4.BB.05MgCr2O4
Magnetite4.BB.05Fe2+Fe3+2O4
'Quartz'4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Aragonite'5.AB.15CaCO3
'Calcite'5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Hydromagnesite5.DA.05Mg5(CO3)4(OH)2 · 4H2O
Magnesite5.AB.05MgCO3
'Pyroaurite'5.DA.50Mg6Fe3+2(OH)16[CO3] · 4H2O
Zaratite5.DA.15Ni3(CO3)(OH)4 · 4H2O ?
Group 8 - Phosphates, Arsenates and Vanadates
'Cacoxenite'8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Group 9 - Silicates
'Antigorite'9.ED.15Mg3(Si2O5)(OH)4
var: Williamsite9.ED.15Mg3(Si2O5)(OH)4
Chrysotile9.ED.15Mg3(Si2O5)(OH)4
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
var: Chromian Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
Dozyite9.EC.60Mg7Al2(Al2Si4O15)(OH)12
Enstatite9.DA.05MgSiO3
Forsterite9.AC.05Mg2SiO4
Lizardite9.ED.15Mg3(Si2O5)(OH)4
'Uvarovite'9.AD.25Ca3Cr2(SiO4)3
'Vesuvianite'9.BG.35(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Unclassified Minerals, Rocks, etc.
Deweylite-Mg4Si3O10 · 6H2O ?
Lancasterite-
'Pimelite'-Ni3Si4O10(OH)2·4H2O
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Marmolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Picrolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Millerite2.8.16.1NiS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Miscellaneous
Maucherite2.16.16.1Ni11As8
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
X(OH)2
Brucite6.2.1.1Mg(OH)2
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnesiochromite7.2.3.1MgCr2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Magnesite14.1.1.2MgCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Zaratite16b.4.1.1Ni3(CO3)(OH)4 · 4H2O ?
Pyroaurite16b.6.2.3Mg6Fe3+2(OH)16[CO3] · 4H2O
Hydromagnesite16b.7.1.1Mg5(CO3)4(OH)2 · 4H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
Miscellaneous
Cacoxenite42.13.5.1Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Uvarovite51.4.3b.3Ca3Cr2(SiO4)3
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Vesuvianite58.2.4.1(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1MgSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Lizardite71.1.2b.2Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 clays
'Pimelite'71.3.1b.5Ni3Si4O10(OH)2·4H2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Dozyite71.4.2.1Mg7Al2(Al2Si4O15)(OH)12
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Antigorite
var: Williamsite
-Mg3(Si2O5)(OH)4
Aragonite-CaCO3
Clinochlore
var: Chromian Clinochlore
-Mg5(Al,Cr)2Si3O10(OH)8
'Deweylite'-Mg4Si3O10 · 6H2O ?
'Lancasterite'-
Quartz
var: Chalcedony
-SiO2
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Marmolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'var: Picrolite'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H AntigoriteMg3(Si2O5)(OH)4
H BruciteMg(OH)2
H CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
H Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
H ChrysotileMg3(Si2O5)(OH)4
H ClinochloreMg5Al(AlSi3O10)(OH)8
H DeweyliteMg4Si3O10 · 6H2O ?
H DozyiteMg7Al2(Al2Si4O15)(OH)12
H HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
H LizarditeMg3(Si2O5)(OH)4
H Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H PimeliteNi3Si4O10(OH)2·4H2O
H PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
H Antigorite (var: Williamsite)Mg3(Si2O5)(OH)4
H ZaratiteNi3(CO3)(OH)4 · 4H2O ?
BBoron
B Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
C MagnesiteMgCO3
C PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
C ZaratiteNi3(CO3)(OH)4 · 4H2O ?
OOxygen
O AntigoriteMg3(Si2O5)(OH)4
O AragoniteCaCO3
O BruciteMg(OH)2
O CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
O CalciteCaCO3
O Quartz (var: Chalcedony)SiO2
O Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
O ChromiteFe2+Cr23+O4
O ChrysotileMg3(Si2O5)(OH)4
O ClinochloreMg5Al(AlSi3O10)(OH)8
O DeweyliteMg4Si3O10 · 6H2O ?
O DolomiteCaMg(CO3)2
O DozyiteMg7Al2(Al2Si4O15)(OH)12
O EnstatiteMgSiO3
O ForsteriteMg2SiO4
O HematiteFe2O3
O HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
O IlmeniteFe2+TiO3
O LizarditeMg3(Si2O5)(OH)4
O MagnesiochromiteMgCr2O4
O MagnesiteMgCO3
O MagnetiteFe2+Fe23+O4
O Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O PimeliteNi3Si4O10(OH)2·4H2O
O PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
O QuartzSiO2
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O UvaroviteCa3Cr2(SiO4)3
O Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
O Antigorite (var: Williamsite)Mg3(Si2O5)(OH)4
O ZaratiteNi3(CO3)(OH)4 · 4H2O ?
FFluorine
F Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
NaSodium
Na Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
MgMagnesium
Mg AntigoriteMg3(Si2O5)(OH)4
Mg BruciteMg(OH)2
Mg Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Mg ChrysotileMg3(Si2O5)(OH)4
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DeweyliteMg4Si3O10 · 6H2O ?
Mg DolomiteCaMg(CO3)2
Mg DozyiteMg7Al2(Al2Si4O15)(OH)12
Mg EnstatiteMgSiO3
Mg ForsteriteMg2SiO4
Mg HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Mg LizarditeMg3(Si2O5)(OH)4
Mg MagnesiochromiteMgCr2O4
Mg MagnesiteMgCO3
Mg Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Mg Antigorite (var: Williamsite)Mg3(Si2O5)(OH)4
AlAluminium
Al CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Al Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al DozyiteMg7Al2(Al2Si4O15)(OH)12
Al Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Al Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
SiSilicon
Si AntigoriteMg3(Si2O5)(OH)4
Si Quartz (var: Chalcedony)SiO2
Si Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Si ChrysotileMg3(Si2O5)(OH)4
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si DeweyliteMg4Si3O10 · 6H2O ?
Si DozyiteMg7Al2(Al2Si4O15)(OH)12
Si EnstatiteMgSiO3
Si ForsteriteMg2SiO4
Si LizarditeMg3(Si2O5)(OH)4
Si Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si PimeliteNi3Si4O10(OH)2·4H2O
Si QuartzSiO2
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si UvaroviteCa3Cr2(SiO4)3
Si Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Si Antigorite (var: Williamsite)Mg3(Si2O5)(OH)4
PPhosphorus
P CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
SSulfur
S MilleriteNiS
S PyriteFeS2
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca UvaroviteCa3Cr2(SiO4)3
Ca Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Cr ChromiteFe2+Cr23+O4
Cr MagnesiochromiteMgCr2O4
Cr UvaroviteCa3Cr2(SiO4)3
MnManganese
Mn Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mn Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Fe ChromiteFe2+Cr23+O4
Fe HematiteFe2O3
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe PyriteFeS2
Fe PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
NiNickel
Ni Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni MaucheriteNi11As8
Ni MilleriteNiS
Ni Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni PimeliteNi3Si4O10(OH)2·4H2O
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Ni ZaratiteNi3(CO3)(OH)4 · 4H2O ?
ZnZinc
Zn Serpentine Subgroup (var: Marmolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Zn Serpentine Subgroup (var: Picrolite)D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
As MaucheriteNi11As8

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleozoic
251.902 - 541 Ma



ID: 2951737
Peters Creek Schist

Age: Phanerozoic (251.902 - 541 Ma)

Stratigraphic Name: Peters Creek Schist

Description: Chlorite-sericite schist containing interbedded quartzite.

Comments: Original map source: Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000.

Lithology: Major:{mica schist,quartzite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Cambrian
485.4 - 541 Ma



ID: 3189717
Paleozoic sedimentary and volcanic rocks

Age: Cambrian (485.4 - 541 Ma)

Lithology: Mudstone-carbonate-sandstone-conglomerate

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 1069.
Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 88.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 246.
Lapham & Geyer (1965) Mineral Collecting in Pennsylvania.
Reed, Juliet C. (1976), Annotated Bibliography of Minerals New to the Pennsylvania List 1965-1974, The Mineralogical Society of Pennsylvania, Inc.: 40.
Smith, II, R. C. and Speer, J. A. (1980) Pennsylvania Minerals VI: Maucherite, Ni11As8, from the State Line District, Lancaster County, Friends of Mineralogy Pennsylvania Chapter Newsletter, v. 8, no. 3, p.7-11 plus addendum no. 4, p. 6. [Provides X-ray diffraction spacings, quantitative electron microprobe analyses, and reflected light ore microscopic data to cinfirm the maucherite.]
Banfield, J. F. Bailey, S. W., Barker, W. W. and Robert C. Smith (1995) Complex polytypism; relationship between serpentine structural characteristics and deformation, American Mineralogist, v. 80, p. 11176-1131.
Mineralogical Record (1996): 27: 301.
Garcia-Guinea, J., La Iglesia, A., Crespo-Feo, E., González del Tanago, J., Correcher, V. (2014): The status of zaratite; investigation of the type specimen from Cape Ortegal, Galicia, Spain. European Journal of Mineralogy: 25: 995-1004.


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