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Mineral Specimen #5381    Margarite

Chester Emery Mines, Hampden County, Massachusetts

Ex. Sid Williams, Ex. Steve Pullman

CaAl2(Al2Si2O10)(OH)2

The Margarite in this specimen is composed of foliated, intergrown, flattened, lilac colored crystals. The matrix is a composition of green Actinolite schist and emery (a combination of possible Magnetite, Chlorite and Corundum). The area was first developed as a source of iron in the late 1850s. Although refining the ore for iron proved unsuccessful, in 1864 emery was discovered and in 1869 the Hampden Emery Co. was formed. The mines were run sporadically until 1913 when they closed down for good. Margarite was discovered at the location in 1864.

Condition: Good

Flaws: Essentially massive material.

5.1 x 3.3 x 1.7 cm

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This mineral is also found in the following galleries: Minerals From New York, New Jersey and New England | Phyllosilicates | Rare Minerals | Minerals Priced Between 25 and 49 Dollars
This mineral is also found in the following galleries: Minerals From New York, New Jersey and New England | Phyllosilicates | Rare Minerals | Minerals Priced Between 25 and 49 Dollars