Not a fossil (Chert Projectile Point Artifact)
Cultural typology: Side-notched or corner-notched projectile point (e.g., cf. Brewerton or Kirk types) • Archaeological lithic artifact; categorized as a projectile point or knapped stone tool (not a biological fossil)
Geological Period
Holocene Epoch (dating from the Archaic to Woodland period of human history)
Estimated Age
Approximately 0.002 to 0.008 million years (2,000 to 8,000 years BP)
Preservation Type
Physical preservation of microcrystalline quartz; no biological replacement involved.
Condition Assessment
Good; shows some step fracturing and minor tip damage, but notches and base remain largely intact.
Taxonomic Classification
Non-biological; Cultural origin (Homo sapiens)
Morphological Description
Triangular blade with invasive conchoidal flaking; featuring distinct side notches and a thinned, slightly concave base. Evidence of percussion and pressure flaking along margins.
Rock Matrix
Black chert or flint; includes minor earthy tan mineral adhesions (caliche or soil mineral crust)
Formation & Location
Commonly found in alluvial deposits, surface finds, or archaeological sites across North America and Europe.
Size & Dimensions
Approximately 8-10 cm in length; typical for a medium-to-large dart point or knife blade.
Value & Rarity
Estimated Market Value
$40.00 - $120.00 USD
Auction Estimate
$50.00 - $150.00 USD
Rarity Assessment
Uncommon; while lithic debitage is common, complete large side-notched points are sought after by collectors.
Scientific Significance
Provides data on lithic technology, migration patterns, and hunting strategies of prehistoric human populations.
Preparation Recommendations
Do not clean with harsh chemicals; dry brush only to preserve any potential micro-residues; store in acid-free padding.
Notable Features
Distinctive dark luster of high-quality chert; prominent side-notching indicating specific hafting technology.