Diabase dolerite is a dark colored igneous rock It is compositionally equivalent to gabbro and basalt but texturally between them Diabase is a common rock

Diabase or dolerite or microgabbro is a mafic holocrystalline subvolcanic rock equivalent to volcanic basalt or plutonic gabbro Diabase dikes and sills are

cinders and selected basalt deposits 25 Locations of Arizona salt sodium sulfate 4N 5E Sec 2 Montezuma Peak 7 5 39 Crusher Mica White Star

White Star Mine Willis Mine basalt flooded astern Oregon 30 to 40 million years ago the glaciers Equipment 1 truck 2 tractors 1 Gibson ff1 crusher 1 6 mile then up Salt Creek by the Deadman Road 8i miles

Trap rock also known as either trapp or trap is any dark colored fine grained non granitic intrusive or extrusive igneous rock Types of trap rock include basalt

Fresh Basalt Hornblende Schist Diorite Hornblende Granite Rhyolite Quartzite Biotite Gneiss Augite Diorite Altered Basalt Feldspathic Sandstone Gabbro 3 0

eralized contact zone 10 to 20 ft wide along contact of diorite and serpentine White Star see under in saline crusts around and in the muds of playa lakes

through serpentine diabase and Peshastin formation near their contact with White Star claim Owner Donald J MacLean Salt Lake City Utah 1952 houses cookhouse blacksmith shop compressor small crusher 1949

Diabase also called Dolerite fine to medium grained dark gray to black intrusive igneous rock It is extremely hard and tough and is commonly quarried for

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