hornfels, Bt, derived from volcanic or Hypabyssal rock / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels from tuff dike / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from dacite / Rock Igneous rock Metamorphic rock

hornfels, act-Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Hbl-Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, act-Bt, from rhyolite welded tuff / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, Bt, from andesite / Rock Igneous rock Metamorphic rock

hornfels, rhyolite-derived / Rock Igneous rock Metamorphic rock

hornfels, act-Bt, from dacite / Rock Igneous rock Metamorphic rock

hornfels from granodiorite porphyry tuff dike / Rock Igneous rock Pyroclastic rock Metamorphic rock

hornfels, act-Bt, from Cpx-Opx dacite / Rock Igneous rock Metamorphic rock

hornfels, act-Bt, from Hbl-Bt granophyre / Rock Igneous rock Metamorphic rock