Pitchstone, a special and rarer type of volcanic glass that is high in water content, is found on the Isle of Arran, Scotland and also on the slopes of Specimen Mountain in the Rocky Mountains in Colorado.
Pitchstone and Specimen Mountain, Colorado, USA
Speciment Mountain, in Rocky Mountain National Park, Colorado, is a denuded Tertiary explosive volcano. Thrust faults displace its core and flanking pyrocastics and flows and have provided chennel ways for hydrothermal solutions rising from depths.
Jasper and opal deposited from these solutions have replaced pitchstone flows adjacent to the faults. Locally the jasper forms geodes, partly or completely filled with agate, onyx, opal, calcite, and minor amounts of allophane and chloropal.
Sufficient time elapsed between the periods of eruptive volcanism and hydrothermal mineralization to permit an intervening period of extensive thrust faulting.
Hydrothermal Deposits in the Specimen Mountain Volcanics, Rocky Mountain National Park, Colorado | (opens PDF file)
If pitchstones natural glass rock physical characteristics are due to its formation in water then should you find pitchstone natural glass around underwater volcanoes?
Specimen Mountain, 3 miles to the west across Cache la Poudre River, appears to be an extinct volcano and the probable source of the lava previously mentioned. The mountain is situated on the Continental Divide 2 miles north of Poudre Lakes and can be reached by a trail from the Lakes. Erosion has long since destroyed the old crater, which stood above the highest point of the present mountain.
That the mountain was a volcano may be inferred from the nature of the rocks which are exposed on its top and sides. Like many volcanic cones, the mountain is built up of alternating layers of black volcanic glass (pitchstone), lava, white volcanic ash, mud flows, breccia, and pumice. Notes on the formation of these rocks follow:
Volcanic glass is produced when molten rock flowing out upon the surface is chilled so quickly that mineral crystals do not have time to form in it.
Ordinary lava is cooled more slowly, but not slowly enough for the rock to become completely crystalline like granite, which is cooled very slowly far below the surface.
Specimen Mountain - A Guide to the Geology of Rocky Mountain National Park, Colorado | National Park System
Or is pitchstone lava glass due to it being a special type of volcanic glass material when being exposed to streams or fresh water?
Specimen Mountain has long been considered to be the remains of a similar volcano. It is formed of layers of volcanic ashflow rock, obsidian, mudflows, volcanic debris fallen from the air, and lava flows of a kind known as rhyolite. These different kinds of rocks can readily be seen along the trail up Specimen Mountain.
Recently, however, R. B. Taylor has discovered that the volcanic ashflow rock and underlying obsidian which cap Specimen Mountain and adjacent summits actually are deposits of a volcanic ashflow, which erupted as a dense cloud from another volcano or caldera, possibly to the northwest, and spread rapidly across the area of Specimen Mountain, where it collapsed, and welded into rock while still hot. The phenomena is somewhat analogous to the ash eruption of Mount Vesuvius that destroyed Pompeii. Moreover, the fact that the ashflow deposit caps Specimen Mountain and adjacent summits shows that Specimen Mountain could not have been an active volcano at the time of the ashflow eruption 28 million years ago.
Specimen Mountain And The Lulu Mountain Volcano
Or could pitchstone glass rock actually be the effects of the transmutation or the process of the transformation of the host rock in that area by electromagnetic forces and energy?
Leaving the material with a higher water content not because it was formed in water but because that Electric Universe geology process left it with more water molecules?
The Crater was named when it was believed to be the crater of a past volcano. Subsequent studies determined that The Crater is actually a natural bowl, and its layers of volcanic rock erupted from another volcano that used to reside nearby.
The Crater – Rocky Mountain National Park | National Park Pictures
Or could it sometimes show that the lava was formed exactly where it was found, with natural water around it, and not millions of years ago?
Was the rocky material of the Never Summer Mountain range transmuted in the same Electric Geology process and that is why they geologically appear to be younger than the mountain ranges surrounding them?