Dims: 3.5 x 1.9 x 1.2" (8.9 x 4.8 x 3.0 cm)
Wt: 6.28 oz. (178.2 g)
Ropes Mine, Marquette County, Michigan, U.S.A.
This specimen consists of a mass of specular, micaceous Talc that is partly intergrown with matrix rock that appears to be made up of both calcite and possibly a type of feldspar. The talc has a semicrystalline form and shows a moderate amount of fresh damage. It occurs in thin plates or sheets that are heavily intergrown and compacted. Both its form and its pearly luster strongly resemble that of mica; however, it has a pale green coloration and is a bit cloudier than most micas, being quite translucent in thin layers.