St. Francois Rhyolite
Natural Form:
Description of Physical Characteristics:
Color:
St. Francois Rhyolite is a reddish color.
Texture:
Medium to fine grain
Luster:
Dull to waxy
Silica Fabrics / Fossils:
Patina:
Heat Treatment:
Heat treatment increases the luster
Knapping:
Distribution:
Distribution Comments:
Primary outcroppings occur in the St. Francois mountains of Missouri.
Projectile point made from this material:
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