7hlkmnr ((BRUCITE, PYROAURITE, HYDROMAGNESITE)), $25 MINIMUM BID, Cedar Hill Quarry, Lancaster County, Pennsylvania, 8 x 5.5 x 2.5 cm, Cabinet | |
Here is a Pennsylvania specimen with a sawn bottom of the matrix Serpentine. On the Serpentine are layers of micaceous Brucite crystals. On the Brucite are pastel green Pyroaurite and white sprays of Hydromagnesite. |