Antietam Quartzite
 AKA: Antietam Schist
 Erwin-Antietam Quartzite










Natural Form:



Description of Physical Characteristics:

Color: Antietam Quartzite ranges from bright white to light gray, tan, brown, pink, or red.  A green brown variation is reported in Amherst County, Virginia.

Texture: Medium to Fine grain

Luster: Dull to vitreous

Translucency:  Opaque to semi translucent

Silica Fabrics / Fossils:  Scolithus

Patina:

Heat Treatment: 

Knapping: 
 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Primary Source Distribution:
Distribution Comments:

Antietam Quartzite is associated Antietam Formation of the Chilhowee Group of the Appalachian Basin and the Piedmont - Blue Ridge Providence of Pennsylvania, Maryland, West Virginia, and Virginia.  Named for the exposure at Antietam Creek, north of the Potomac River Maryland. Antietam Quartzite is found into the slopes of the Blue Ridge Range in Maryland, Virginia, West Virginia, and southeastern Pennsylvania.

 Antietam Formation and the Erwin Formation are considered equivalents with Antietam Formation being in the north and Erwin Formation to the south.

 

Projectile point made from this material:



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References: (See Reference Page, Entry Number):

Similar Material:
Commonly made projectile point from this material:
Guilford, Morrow Mountain, Savannah River
Archaeological Context:
Antietam- Erwin Quartzite was used extensively in the Blue Ridge and Shenandoah Valley.  It is the primary material used in north and central Virginia, with highest used during he middle to late Archaic period.