Sandstone
Hardness: 4.5
Sandstone, a common stone used in construction, is composed of grains of sand (quartz, feldspar and rock fragments). The “Brownstone front” homes (in Boston, New York, Baltimore and other cities) are made from a Feldspar rich sandstone which has been around for 200 million years.
Sandstone Spheres (Blue) |
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Sandstone Touching Stones |
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| (We have both Blue and Gold) |