sedimentary

Chert Arrowhead (Projectile Point)

Chert (Cryptocrystalline Quartz, SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs); Color: Tan, beige, or brown with iron staining; Luster: Dull to waxy; Structure: Microcrystalline; Conchoidal fracture patterns from flaking.

Hardness: 6
Color: Tan, beige, or brown with iron staining
Luster: Dull to waxy

Identified July 19, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs); Color: Tan, beige, or brown with iron staining; Luster: Dull to waxy; Structure: Microcrystalline; Conchoidal fracture patterns from flaking.

Formation & geological history

Formed as nodules or beds in sedimentary limestone or chalk via chemical precipitation of silica. This piece was later anthropogenically modified through knapping.

Uses & applications

Historically used as a hunting tool or weapon; currently valued as an archaeological artifact and for private collections.

Geological facts

This is a lithic artifact created by ancient peoples using a process called pressure flaking to create a sharp edge. It is a tangible link to prehistoric technology.

Field identification & locations

Identify by looking for rhythmic flake scars and a symmetrical 'projectile' shape. Often found in plowed fields or near ancient water sources. Note: Local laws may restrict the collection of artifacts.