Custom Cut Polished & Wire Wrapped Greenstone Set: Earrings, Necklace/pendant/slide/enhancer in sterling silver .935 Virginia Gemstone from Albemarle County VA
Overall size:Necklace/Pendant: 1 3/4 × 5/8 inch or 44mm x 16mm Earrings: 1 1/8 × 7/16 inch or 29mm x 11mm
The Catoctin Formation is composed primarily of metabasalt, commonly referred to as greenstone due to the rock’s greenish tint. When the basalt was metamorphosed, igneous minerals such as pyroxene, plagioclase, and olivine were converted to new minerals (chlorite, actinolite, and epidote), which give the rock its distinctive color. The Catoctin Formation also contains discontinuous layers of metasedimentary rock (including phyllite, quartzite, and even marble), as well as volcanic breccia and metarhyolite.
What is greenstone: https://www.madeinva.tv/s1e10.html