Specimen data for Dolomite

Tom Mortimer catalog number: u904

Identification method:Dolomite, CaMg(CO3)2   identification by EDS analysis:
Mg (1.24) = 454; Ca (3.69) = 591; Fe (6.40) = 65; Background 2KeV/10KeV = 36/3

Notes: Initially thought these rhombs might be ankerite, but analysis showed them to be dolomite.
These were collected from ledge, not glacial float.