SpiritRock Shop Obsidian is a rock which is a type of naturally occurring glass, produced by volcanoes (igneous origin) when a felsic lava cools rapidly and freezes without sufficient time for crystal growth.
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Material called fire obsidian. A four square mile area of black and grey volcanic glass where kids of all ages will enjoy one-mile interpretive walk. At just 1,300 years old, the Big Obsidian Flow is the youngest lava flow in Oregon.
The summit caldera of Newberry Volcano, Newberry National Volcanic Monument, Oregon. The 1,350 year-old Big Obsidian Flow is located in the lower right quadrant. oregon obsidian Sources
A very unique hike through an obsidian lava flow beneath Paulina Peak in Newberry Crater, Oregon. Throughout the flow, there are interpretive signs telling the history of the area, from the eruption 1,300 years ago, to the colonization of plants and animals, to the use of the glass by native tribes and its trade throughout the west.
An excellent example of a relatively recent obsidian flow can be found at Paulina Lake (part of the Newberry Volcano), approximately 30 miles southeast of Bend, Oregon. Portions of this obsidian flow are mixed with layers of pumice , a glassy, bubble-rich, lightweight rock that develops when water vapor (steam) escapes rapidly from the molten glass at or near the ground surface.
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Obsidian everywhere you look! Glass Buttes – Rockhounding and habitat Located about halfway between the towns of Bend and Burns in eastern Oregon, this site is a rockhounder’s paradise. You can dig and crack open obsidian with a rock hammer, but you really don’t need to because it’s all over the surface.
As we’ve blossomed into rockhounders, collecting obsidian became an obvious prize. We wanted to collect it ourselves, and in Oregon there’s one legal spot to go: glass buttes. glass Buttes is on Bureau of Land Management (BLM) property. The Forest Service has a short write-up on their website.
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Obsidian. Oregon has one of the best places on this planet for finding obsidian, a volcanic glass and a mineraloid that is usually black in color. The location is Glass Butte and Little Glass Butte and surrounding areas in central Oregon.