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Orford soapstone quarries, Orford, Grafton Co., New Hampshire, USA

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 43° North , 72° West (est.)
Margin of Error:~5km
Locality type:Group of Quarries
Köppen climate type:Dfb : Warm-summer humid continental climate


Located on Cottonstone Mountain, these quarries were active before 1823.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Meyers & Stewart, 1956. Geology of NH, Part III, p.57, 59
'Soapstone'
Reference: Meyers & Stewart, 1956. Geology of NH, Part III, p.57, 59
Talc
Formula: Mg3Si4O10(OH)2
Reference: Meyers & Stewart, 1956. Geology of NH, Part III, p.57, 59

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
'Dravite'9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Talc'9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Soapstone'-

List of minerals arranged by Dana 8th Edition classification

Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Soapstone'-

List of minerals for each chemical element

HHydrogen
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H TalcMg3Si4O10(OH)2
BBoron
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O TalcMg3Si4O10(OH)2
NaSodium
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg TalcMg3Si4O10(OH)2
AlAluminium
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Si TalcMg3Si4O10(OH)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Belknap, Jeremy (1792): The History of New Hampshire, Volume III., p. 192.
Farmer, John and Moore, Jacob B. (1823): A Gazetteer of the State of New-Hampshire (Concord, NH: Jacob B. Moore), p. 19.
Robinson, S. (1825): A Catalogue of American Minerals, With Their Localities
Meyers & Stewart (1956): Geology of New Hampshire, Part III, p.57, 59.


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