Color: Jefferson
City Chert ranges from a light gray to brown in color. Multiple
variations may exist including a
Oolitic chert that ranges from an off
white to a pale blue with small round or elongated white oolitic speckles
2 mm in diameter
Banded chert ranging
from a off white to a pale purple with narrow banding alternating banding
(often concentric) of brown, blue, and purple.
Mottled chert is a more common chert with
mottling banded chert coloration. The mottling pattern generally exhibits a streaking, swirling, or
disturbed banding appearance.
Dense chert which is
white with a pearly luster.
Texture: Fine grain
Luster: Waxy
Silica Fabrics / Fossils: Gastropods
Patina:
Heat Treatment:
Distribution:
Distribution Comments:
Jefferson City Chert is associated with the Jefferson City Formation of
the Canadian Series of
the Ozarks of Arkansas and Missouri.
Projectile point made from this material:
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