Mineral Specimen #4013 Phlogopite, Dolomite, Willemite
Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey
1965 or older
Books of Phlogopite frozen in a matrix of Dolomite and Willemite. The color of the Phlogopite is a dark brown with the cleaved areas a little lighter. Under SW, the Willemite does fluoresce but rather weakly.
The specimen is in fairly good condition but, the Phlogopite crystals end in cleavage planes.
8.7 x 6.8 x 4.1 cmLargest crystal is 1.7 x 1 x .8 cm
This mineral is also found in the following galleries: Minerals From New York, New Jersey and New England | Phyllosilicates | Carbonates | Nesosilicates | Minerals Priced Between 25 and 49 Dollars