Sand-Calcite Crystals White River Badlands, South Dakota Dimensions: 7.5 x 3.4 x 3.1 cm
An unusual vintage specimen of sand-calcite crystals from the White River Badlands of South Dakota. These fascinating formations develop as calcite crystallizes through sand, incorporating abundant sand grains directly into the growing crystals. The result is a formation that looks like sculpted sandstone while retaining distinct crystal forms. This specimen features several large, intergrown crystals forming a particularly sculptural cluster with a naturally granular surface. Accompanied by its original vintage collection label identifying it as “Sandstone Crystals.”
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