Some of the wonderful Tufa that is mined by Wayne Holland and sold here at the Rock Shop.
A fountain made of Tufa and a large green marble.
Tufa at the Blanchard Rock Shop |
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"Nevada tufa is a natural rock that formed 10,000 to 20,000 years ago when half of Nevada was covered by an inland sea called Lahothan. The tufa formed on the sea floor when natural mineral springs came in contact with saline lake water and the dissolved minerals precipitated out of solution. The minerals, calcium carbonate and silica, fell to the sea floor and solidified in horizontal layers in a process similar to that which forms stalactites in caves. Spring water jetting upward through the sea bed layers formed the holes in this bizarre and unique formation." - Wayne Holland |
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Some of the wonderful Tufa that is mined by Wayne Holland and sold here at the Rock Shop.
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A fountain made of Tufa and a large green marble.
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