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.
Hornfels Metamorphic Rock. Hornfels is a fine-grained rock that can range from dark to light in color. The original rock type was typically sandstone, clay or shale, limestone or diabase. An information card with details on the rocks formation, mineral content, characteristics and uses is included. Typical samples sizes are generally 1-2 inches in length or width but can vary based in availability and natural formation.