Middlefield soapstone quarries (Metropolitan Soapstone Co. Quarry), Middlefield, Hampshire County, Massachusetts, USAi
Regional Level Types | |
---|---|
Middlefield soapstone quarries (Metropolitan Soapstone Co. Quarry) | Group of Quarries |
Middlefield | Town |
Hampshire County | County |
Massachusetts | State |
USA | Country |
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Latitude & Longitude (WGS84):
42° North , 73° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Group of Quarries
KΓΆppen climate type:
Mindat Locality ID:
215755
Long-form identifier:
mindat:1:2:215755:2
GUID (UUID V4):
82ae01fa-93ab-43c0-a38e-066812ab932f
These were the first commercial soapstone quarries in Massachusetts, opened in 1811 or 1812. Holland (1855) gives the following information about operations in the early 1850s:
"One of the largest and most important soapstone quarries in the United States is in Middlefield. It has been known and worked for several years by several companies, all with more or less profit, and to a considerable extent. During 1853 it was purchased by a New York company, chartered as the Metropolitan Soapstone Company, with a capital of $300,000. General Charles B Stuart is the President of the company. This Company are now quarrying this rock in immense quantities, and conducting operations in a more systematic and scientific manner, than has ever been done before at this quarry. The bed is several hundred feet in length, and has an average width of thirty feet, and, in most parts of it, is of an uniform gray color, although, in some places, it is slightly variegated, which is the best and handsomest quality for building purposes. There are two mills at Middlefield for sawing this stone, and grinding a portion of it into powder, and a yard in New York city, at No. 260, West 13th Street, occupying an acre of ground, with a steam engine, an iron building, and machinery necessary for the working of the stone. During the year 1853, 1000 tuns of this stone were quarried at Middlefield, 600 tuns of which were taken to the New York market, and there sold for firestones in coal furnaces, at an average price of $12 the tun. During 1854 the Company quarried and worked up at least 100 tuns the week."
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
β Antigorite Formula: Mg3(Si2O5)(OH)4 Colour: pale green to blue-green Description: Massive with magnetite. References: |
β Chrysotile Formula: Mg3(Si2O5)(OH)4 References: |
β Magnetite Formula: Fe2+Fe3+2O4 Habit: anheral Colour: black Description: Shapeless blobs in massive serpentine to at least 2 cm. References: |
β 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
β 'Soapstone' |
β Talc Formula: Mg3Si4O10(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 4 - Oxides and Hydroxides | |||
---|---|---|---|
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
Group 9 - Silicates | |||
β | Chrysotile | 9.. | Mg3(Si2O5)(OH)4 |
β | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
β | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
Unclassified | |||
β | 'Soapstone' | - | |
β | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Antigorite | Mg3(Si2O5)(OH)4 |
H | β Chrysotile | Mg3(Si2O5)(OH)4 |
H | β Talc | Mg3Si4O10(OH)2 |
H | β Serpentine Subgroup | D3[Si2O5](OH)4 |
O | Oxygen | |
O | β Antigorite | Mg3(Si2O5)(OH)4 |
O | β Chrysotile | Mg3(Si2O5)(OH)4 |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Talc | Mg3Si4O10(OH)2 |
O | β Serpentine Subgroup | D3[Si2O5](OH)4 |
Mg | Magnesium | |
Mg | β Antigorite | Mg3(Si2O5)(OH)4 |
Mg | β Chrysotile | Mg3(Si2O5)(OH)4 |
Mg | β Talc | Mg3Si4O10(OH)2 |
Si | Silicon | |
Si | β Antigorite | Mg3(Si2O5)(OH)4 |
Si | β Chrysotile | Mg3(Si2O5)(OH)4 |
Si | β Talc | Mg3Si4O10(OH)2 |
Si | β Serpentine Subgroup | D3[Si2O5](OH)4 |
Fe | Iron | |
Fe | β Magnetite | Fe2+Fe23+O4 |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Ganderia DomainDomain
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