42324: Gypsum - $22 Great Salt Plains, Jet, Alfalfa County, Oklahoma Cabinet - 13.4 x 5.8 x 4.4 cm 138 grams Specimen status: Available Send an email with specimen number to order This gypsum cluster grew in sandy
soil, resulting in numerous sand grain to tiny pebble
inclusions. This example is rather large for this classic
gypsum locality. Despite gypsum's softness, this specimen
is in superb condition.
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