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Beryl Mountain Quarry, South Acworth, Acworth, Sullivan County, New Hampshire, USAi
Regional Level Types
Beryl Mountain QuarryQuarry
South AcworthUnincorporated Community
AcworthTown
Sullivan CountyCounty
New HampshireState
USACountry

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Latitude & Longitude (WGS84):
43° 10' 51'' North , 72° 17' 39'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Acworth890 (2017)4.1km
Alstead2,071 (2017)6.5km
Langdon624 (2017)7.1km
Lempster1,034 (2017)9.3km
Marlow796 (2017)10.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Keene Mineral ClubKeene, New Hampshire28km
Mindat Locality ID:
6000
Long-form identifier:
mindat:1:2:6000:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Beryl Mountain pegmatites; Beryl Hill; William's ledge


Granite pegmatite, Alstead field. Local rocks include Ammonoosuc Volcanics, bimodal volcanic rocks.
A granite pegmatite-beryl/Be-feldspar-quartz occurrence/mine located near the village of South Acworth, on private land. Owned by Sadie Cohen (1954).

Beryl Mountain was known in the 1820s and a famous expedition went there in 1829, led by the young Charles Upham Shepard, with Edward Hitchcock and others. By 1837, Francis Alger, noted amateur mineralogist and editor of Phillips' Elementary Treatise on Mineralogy (4th edition, 1844), had found giant beryl crystals (to 4 feet by 5 inches across one prism face = 1.22 m x 12.5 cm) and at that time were regarded as world record size. The longest reliably reported beryl from this locality is 5 feet (Cameron et al., 1954), although some reports of larger crystals (to 6 x 1 feet = 2 x 0.3 meters) appear unsubstantiated.

The most interesting locality to the mineralogist, is 'William's Ledge' or 'Beryl Hill,' celebrated for the immense size of its beryls which have been sold to cabinets, in various parts of the world....There is one of them in the Imperial cabinet - in Vienna, highly prized even in that superb collection. The Acworth beryls, when perfect, have a fine light blue green color, of that variety known as aqua marine [sic].


Many large crystals have been saved from this mine in museums. The amount of beryl mined from here has been vastly under-reported because of Cold War secrecy. Anecdotal reports suggest that the pegmatite as a whole contained 20% beryl!

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


24 valid minerals. 3 erroneous literature entries.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Almandine
Formula: Fe2+3Al2(SiO4)3
Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
Bertrandite
Formula: Be4(Si2O7)(OH)2
Beryl
Formula: Be3Al2(Si6O18)
Beryl var. Aquamarine
Formula: Be3Al2Si6O18
Beryl var. Goshenite
Formula: Be3Al2(Si6O18)
Beryl var. Heliodor
Formula: Be3Al2(Si6O18)
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series' ?
Fluorapatite
Formula: Ca5(PO4)3F
Goethite
Formula: Fe3+O(OH)
'Gummite'
Hematite
Formula: Fe2O3
'Lepidolite'
Description: Questionable Accuracy- Specimen was possibly mislabeled.
'Limonite'
Magnetite ?
Formula: Fe2+Fe3+2O4
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6H2O
Metaschoepite
Formula: (UO2)8O2(OH)12 · 10H2O
References:
Microcline
Formula: K(AlSi3O8)
Habit: Crystals to 20 feet
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Opal
Formula: SiO2 · nH2O
Opal var. Opal-AN
Formula: SiO2 · nH2O
Paraschoepite
Formula: UO3 · 2H2O
References:
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var. Rose Quartz
Formula: SiO2
Quartz var. Smoky Quartz
Formula: SiO2
Rutherfordine
Formula: (UO2)CO3
Schoepite
Formula: (UO2)8O2(OH)12 · 12H2O
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Uraninite
Formula: UO2
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Vandendriesscheite
Formula: PbU7O22 · 12H2O
Description: EDXRF analysis on specimen in Fred E. Davis collection, 7 November 2018.
Wardite
Formula: NaAl3(PO4)2(OH)4 · 2H2O
Zircon
Formula: Zr(SiO4)
Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Magnetite ?4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var. Rose Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Opal
var. Opal-AN
4.DA.10SiO2 · nH2O
4.DA.10SiO2 · nH2O
Uraninite4.DL.05UO2
Metaschoepite4.GA.05(UO2)8O2(OH)12 · 10H2O
Paraschoepite4.GA.05UO3 · 2H2O
Schoepite4.GA.05(UO2)8O2(OH)12 · 12H2O
Vandendriesscheite4.GB.40PbU7O22 · 12H2O
Group 5 - Nitrates and Carbonates
Rutherfordine5.EB.05(UO2)CO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Wardite ?8.DL.10NaAl3(PO4)2(OH)4 · 2H2O
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6H2O
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
var. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl
var. Aquamarine
9.CJ.05Be3Al2Si6O18
9.CJ.05Be3Al2(Si6O18)
var. Heliodor9.CJ.05Be3Al2(Si6O18)
var. Goshenite9.CJ.05Be3Al2(Si6O18)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
var. Cleavelandite9.FA.35Na(AlSi3O8)
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Gummite'-
'Lepidolite' ?-
'Limonite'-
'Tantalite' ?-(Mn,Fe)(Ta,Nb)2O6
'Columbite-(Fe)-Columbite-(Mn) Series' ?-

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H BertranditeBe4(Si2O7)(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H GoethiteFe3+O(OH)
H Opal var. Opal-ANSiO2 · nH2O
H Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
H Metaschoepite(UO2)8O2(OH)12 · 10H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H OpalSiO2 · nH2O
H ParaschoepiteUO3 · 2H2O
H Schoepite(UO2)8O2(OH)12 · 12H2O
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H VandendriesscheitePbU7O22 · 12H2O
H WarditeNaAl3(PO4)2(OH)4 · 2H2O
H Zircon var. CyrtoliteZr[(SiO4),(OH)4]
BeBeryllium
Be Beryl var. AquamarineBe3Al2Si6O18
Be BertranditeBe4(Si2O7)(OH)2
Be BerylBe3Al2(Si6O18)
Be Beryl var. HeliodorBe3Al2(Si6O18)
Be Beryl var. GosheniteBe3Al2(Si6O18)
BBoron
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C Rutherfordine(UO2)CO3
OOxygen
O AlbiteNa(AlSi3O8)
O Beryl var. AquamarineBe3Al2Si6O18
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O AlmandineFe32+Al2(SiO4)3
O BertranditeBe4(Si2O7)(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O BerylBe3Al2(Si6O18)
O FluorapatiteCa5(PO4)3F
O GoethiteFe3+O(OH)
O HematiteFe2O3
O Opal var. Opal-ANSiO2 · nH2O
O MagnetiteFe2+Fe23+O4
O Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
O Metaschoepite(UO2)8O2(OH)12 · 10H2O
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O OpalSiO2 · nH2O
O ParaschoepiteUO3 · 2H2O
O QuartzSiO2
O Quartz var. Rose QuartzSiO2
O Rutherfordine(UO2)CO3
O Schoepite(UO2)8O2(OH)12 · 12H2O
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O Quartz var. Smoky QuartzSiO2
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O VandendriesscheitePbU7O22 · 12H2O
O WarditeNaAl3(PO4)2(OH)4 · 2H2O
O ZirconZr(SiO4)
O Beryl var. HeliodorBe3Al2(Si6O18)
O Zircon var. CyrtoliteZr[(SiO4),(OH)4]
O Beryl var. GosheniteBe3Al2(Si6O18)
O Albite var. CleavelanditeNa(AlSi3O8)
O Columbite-(Fe)-Columbite-(Mn) Series
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F FluorapatiteCa5(PO4)3F
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Na WarditeNaAl3(PO4)2(OH)4 · 2H2O
Na Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Beryl var. AquamarineBe3Al2Si6O18
Al AlmandineFe32+Al2(SiO4)3
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al BerylBe3Al2(Si6O18)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al WarditeNaAl3(PO4)2(OH)4 · 2H2O
Al Beryl var. HeliodorBe3Al2(Si6O18)
Al Beryl var. GosheniteBe3Al2(Si6O18)
Al Albite var. CleavelanditeNa(AlSi3O8)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Beryl var. AquamarineBe3Al2Si6O18
Si AlmandineFe32+Al2(SiO4)3
Si BertranditeBe4(Si2O7)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si BerylBe3Al2(Si6O18)
Si Opal var. Opal-ANSiO2 · nH2O
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si Quartz var. Rose QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si Quartz var. Smoky QuartzSiO2
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si ZirconZr(SiO4)
Si Beryl var. HeliodorBe3Al2(Si6O18)
Si Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Si Beryl var. GosheniteBe3Al2(Si6O18)
Si Albite var. CleavelanditeNa(AlSi3O8)
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
P FluorapatiteCa5(PO4)3F
P Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
P WarditeNaAl3(PO4)2(OH)4 · 2H2O
SSulfur
S PyriteFeS2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca FluorapatiteCa5(PO4)3F
Ca Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
Mn Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe Columbite-(Fe)-Columbite-(Mn) Series
ZrZirconium
Zr ZirconZr(SiO4)
Zr Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Columbite-(Fe)-Columbite-(Mn) Series
TaTantalum
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
PbLead
Pb VandendriesscheitePbU7O22 · 12H2O
UUranium
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U Meta-autuniteCa(UO2)2(PO4)2 · 6H2O
U Metaschoepite(UO2)8O2(OH)12 · 10H2O
U ParaschoepiteUO3 · 2H2O
U Rutherfordine(UO2)CO3
U Schoepite(UO2)8O2(OH)12 · 12H2O
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U VandendriesscheitePbU7O22 · 12H2O

Other Databases

Link to USGS MRDS:10084741

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Hurlbut, Cornelius S. (1952) Wardite from Beryl Mountain, New Hampshire. American Mineralogist, 37 (9-10) 849-852 (Erroneously labeled specimen from the Palermo #1 Pegmatite. C. Hurlbut, pers. comm., 1992)
 
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