GRD044US0
AR-02
Syenite
Mesozoic › Cretaceous › Late Cretaceous › Turonian
89.3
-
93.5
0
Ritter 154 › Cabinet 15 › Drawer D
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syenite (possibly alkali feldspar syenite), dark facies (blue granite) of Granite Mtn
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Arkansas alkaline province
Arkansas
Granite Mtns, south of Little Rock, AR (picked one of quarries)
Latitude: 34.7°
Longitude: -92.2°
