Blue Apatite SphereA perfect sphere of teal bluethe color is almost Caribbean, the mineral surprisingly rare in gem quality. Blue Apatite is a calcium phosphate mineral, Ca5(PO4)3(OH,F,Cl), Mohs 5. Its name comes from the Greek apataoto deceivebecause it was chronically misidentified as other minerals until careful analysis in the late 18th century separated it as its own species. Gem quality blue is found primarily in Brazil and Madagascar; the teal to electric blue