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Show us your red and blue fossils in celebration of Election Day. While red and blue states and members of red and blue political parties occur in equal to subequal numbers in the US, blue fossils are quite rare. Lots of fossils are reddish because iron minerals are the most common pigments of rocks on Earth. Blue colors in fossils are quite rare. The blue phosphate rich mineral vivianite sometimes occurs in phosphate rich fossils such as Mammoth and shark teeth that have been altered by soil conditions. My red fossil is a crinoid column replaced by iron-rich, chert from the Pennsylvanian Naco Formation in central Arizona. I don't have a true blue fossil so here is a photo of one found on the internet: a probable millipede fossil composed of Larimar which is a rare blue variety of the mineral pectolite found in the Dominican Republic. The gist of this challenge is for our members to show us liberal numbers of blue fossils even though, by conservative estimates, reddish fossil are much more common. For those of you caught in the middle, that don't have red or blue fossils, show us your purple fossils. Then we would really be impressed.