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Most times the septarian calcite exhibits a vibrant fluorescence under long-wave ultraviolet light
carved and formed into an approximate 1 3/4" rock cube
Its specific composition
Stands on its Corner Cut Base
of these finds
Fossilized Margaretia dorus Cambrian Algae Septarian Cubes Most times the septarian calciteExcellent example of an authentic fossilized algae specimen Margaretia dorus. Age: Middle Cambrian (521 to 497 mya) Species Name: Margaretia dorus Locality: Wheeler Shale, Millard County, Utah Size: Approximately 2 1 4"x1 2" Margaretia Algae on a 2 1 2"x2" shale Comes with stand Most collected Margaretia are not this detailed and have an orange red coloration due to high iron content which most often causes a lack of clear distinct patterning as in
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