Color: Addy Quartzite ranges from a grayish white to
a yellowish gray or yellowish brown.
Texture: Medium to course grain
Luster: Vitreous
Silica Fabrics / Fossils:
Patina:
Heat Treatment:
Knapping: breaks in a angular or with a
conchoidal fracture.
Notes: The Lexicon of Geographical Names
distinguished Eagle Mountain and Colville Quartzite as independent
members. However, they note that these all fall within the same
formation and are difficult to distinguish from one another and may just
be extension of distribution of Addy Quartzite which is why they were
included in Addy Quartzite on this page.
Distribution:
Distribution Comments:
Addy Quartzite is associated with the Addy Quartzite Formation of
northeastern Washington and has primary outcroppings in Stevens County, Washington.
Eagle Mountain Quartzite has primary outcroppings on Eagle Mountain,
Stevens County, Washington
Projectile point made from this material:
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