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Sugar Grove Basalt, Pendleton Co., West Virginia, USAi
Regional Level Types
Sugar Grove Basalt- not defined -
Pendleton Co.County
West VirginiaState
USACountry

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Key
06818090014948990324274.jpg
Typical amygdules in the Sugar Grove, WVa basalt

Sugar Grove Basalt, Pendleton Co., West Virginia, USA
Latitude & Longitude (WGS84):
38° 26' 49'' North , 79° 21' 24'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Monterey136 (2017)19.9km
Franklin677 (2017)21.9km
Brandywine218 (2011)22.0km
Deerfield132 (2011)28.2km
Churchville194 (2011)29.9km


An amygdaloidal basalt dike-sill intruding the Devonian Millboro shale that outcrops along County road 21 approximately 5.5 miles south of the village of Sugar Grove, WVa. The intrusion is Eocene age, 45 MA+/- and up to approximately 10 feet thick. Amygdules greater than 1 inch in diameter are uncommon making this locality strictly a micromount locality.

This intrusion is part of a suite of Eocene dikes, diatremes and plugs centered on the areas around Monterey, Va and Ugly Mountain, Pendelton Co., WVa. Older, Jurassic and Cretaceous, dikes and plugs extend into the Shenandoah Valley to the vicinity of Harrisonburg and Staunton.

The road side outcrop south of Sugar Grove is the only one known to contain attractive secondary minerals. These are the youngest volcanic rocks east of the Rocky Mountains.



Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: http://pubs.usgs.gov/circ/2004/1264/html/trip4/index.html
Analcime
Formula: Na(AlSi2O6) · H2O
Habit: trapazohedra
Colour: colorless
Reference: Rocks & Minerals 68:167; Tschernich, R. (1992): Zeolites of the World, 71; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Aragonite
Formula: CaCO3
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: http://pubs.usgs.gov/circ/2004/1264/html/trip4/index.html
Baryte
Formula: BaSO4
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: http://pubs.usgs.gov/circ/2004/1264/html/trip4/index.html
Calcite
Formula: CaCO3
Reference: Rocks & Minerals 68:167; Tschernich, R. (1992): Zeolites of the World, 71; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
'Chabazite'
Reference: Rocks & Minerals 68:167; Tschernich, R. (1992): Zeolites of the World, 71
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Reference: Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
'Chlorite Group'
Reference: No reference listed
'Erionite' ?
Reference: Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Gypsum
Formula: CaSO4 · 2H2O
Reference: Rocks & Minerals 68:167
Harmotome
Formula: (Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: Tschernich, R. (1992): Zeolites of the World, 71, 424
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
'Phillipsite'
Reference: Tschernich, R. (1992): Zeolites of the World, 71, 424
Pyrite
Formula: FeS2
Habit: filiform crystals
Reference: Rocks & Minerals 68:167; Tschernich, R. (1992): Zeolites of the World, 71; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
Quartz
Formula: SiO2
Reference: Rocks & Minerals 68:167; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Reference: Tschernich, R. (1992): Zeolites of the World, 71, 424
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
Reference: Rocks & Minerals 68:167; Tschernich, R. (1992): Zeolites of the World, 71; Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium November 10-11, 2012 Abstracts pp 19-20

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Analcime9.GB.05Na(AlSi2O6) · H2O
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Harmotome9.GC.10(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Mesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Thomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite'-
'Chlorite Group'-
'Erionite' ?-
'Phillipsite'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Chabazite-Ca77.1.2.1(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Harmotome77.1.3.5(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Mesolite77.1.5.4Na2Ca2Si9Al6O30 · 8H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Aragonite-CaCO3
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chabazite'-
'Chlorite Group'-
'Erionite' ?-
'Phillipsite'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
Thomsonite-Ca-NaCa2[Al5Si5O20] · 6H2O

List of minerals for each chemical element

HHydrogen
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
H AnalcimeNa(AlSi2O6) · H2O
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
H Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
H GypsumCaSO4 · 2H2O
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
H NatroliteNa2Al2Si3O10 · 2H2O
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
OOxygen
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
O AnalcimeNa(AlSi2O6) · H2O
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
O Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
O AragoniteCaCO3
O CalciteCaCO3
O BaryteBaSO4
O GypsumCaSO4 · 2H2O
O QuartzSiO2
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O NatroliteNa2Al2Si3O10 · 2H2O
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Na AnalcimeNa(AlSi2O6) · H2O
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
Na Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Al NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Al AnalcimeNa(AlSi2O6) · H2O
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
Al Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Al NatroliteNa2Al2Si3O10 · 2H2O
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
SiSilicon
Si NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Si AnalcimeNa(AlSi2O6) · H2O
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
Si Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Si QuartzSiO2
Si NatroliteNa2Al2Si3O10 · 2H2O
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
SSulfur
S BaryteBaSO4
S GypsumCaSO4 · 2H2O
S PyriteFeS2
KPotassium
K Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
Ca Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca GypsumCaSO4 · 2H2O
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
FeIron
Fe NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Fe PyriteFeS2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
BaBarium
Ba Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
Ba BaryteBaSO4

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Tschernich, R. (1992): Zeolites of the World, 71,424
Kearns, L. (1993): The Minerals of Sugar Grove, West Virginia (Rocks & Minerals 68:158)
Southworth, C.S., Gray, K.J., and Sutter, J.F. (1993): Middle Eocene intrusive igneous rocks of the central Appalachian Valley and Ridge province; Setting, chemistry, and implications for crustal structure: U.S. Geological Survey Bulletin 1839, p. J1–J24.
Tso, J. et. al.(2004) Middle Eocene Igneous Rocks of the Valley and Ridge of Virginia and West Virginia in: Southworth, S. and Burton, W. eds., Geology of the National Capitol Region - Field Trip Guidebook, USGS Circular 1254.
Patrick E. Haynes (2012) Zeolites and associated minerals from Sugar Grove, Pendelton County, West Virginia. New Mexico Mineral Symposium
November 10-11, 2012 Abstracts pp 19-20


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