It is located in the Upper Geyser Basin, and is situated on a mound of geyserite built by its own water. From Wordnik.com. [Shepp's Photographs of the World] Reference
The geyserite, or the solid incrustations, is over 80° of silica, with. From Wordnik.com. [A Girl's Ride in Iceland] Reference
They come nearer in character to the Yellowstone geysers, their waters depositing true geyserite, or silicious concretions. From Wordnik.com. [The San Francisco calamity by earthquake and fire] Reference
But there is no mound, and the rocks of the fissure are just beginning to get a coating of the silicious geyserite deposited from the water, so that it cannot long have been spouting. From Wordnik.com. [The San Francisco calamity by earthquake and fire] Reference
Moreover, the resounding echoes from the clatter of our horses 'feet as they briskly trotted over some of the geyserite, as well as the heat we experienced through the thick leather soles of our boots as we walked across it, was unmistakable proof that but a thin layer of crust separated the surface of the globe we were traversing in Wyoming and Montana not alone from vast caverns, but likewise from still active subterranean fires. From Wordnik.com. [A Girl's Ride in Iceland] Reference
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