Gruesome California Crime Stories That May Play A Part In âTrue Detectiveâ Season 2. Nic Pizzolatto isnât letting us into his warped, deviant mind when it comes to salient plot points surrounding the second season of the highly-acclaimed HBO anthology series, True Detective, but he has dropped a few hints.
Rhyolite: Fine-Grained Felsic Rock Most rhyolites are light gray to pinkish in color, but red or even black rhyolites are not rare. Most rhyolites are porphyritic and are identified by the quartz phenocrysts and white to salmon K-feldspar phenocrysts. The groundmass is aphanitic or even glassy.
Mafic and Ultramafic Rock. Although they are less common than other rock types in Western North Carolina, mafic and ultramafic rocks can be found in several counties of the MRC region. The terms mafic, ultramafic, and felsic refer to a rock classification continuum based on the relative abundance of certain elements.