Historic and Physical Geology
Sedimentary rock, granular cryptocrystalline silica (crystaline structure too fine to see
with an ordinary microscope)
It is similar to Flint but uaually light in color. Occures as a compact massive rock,
or as nodules.
(Reference - Physical Geology - Leet and Judson/ third edition)
Chert Nodules in Limestone|
Shark Mountain Parking Lot
Kananaskis Country, AB
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