Rock Identifier
Chert / Flint Handaxe (Cryptocrystalline Quartz (SiO2)) — sedimentary
sedimentary

Chert / Flint Handaxe

Cryptocrystalline Quartz (SiO2)

Hardness of 7 on the Mohs scale, dull to waxy luster, conchoidal fracture, greyish-brown color with iron oxide staining (patina).

Identified More sedimentary
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Physical properties

Hardness of 7 on the Mohs scale, dull to waxy luster, conchoidal fracture, greyish-brown color with iron oxide staining (patina).

Formation & geological history

Formed through the replacement of limestone or chalk by microcrystalline silica during diagenesis in marine environments, often shaped by human artifice.

Uses & applications

Historically used for prehistoric stone tools such as handaxes, scrapers, and cutting implements; now of significant archaeological and collector value.

Geological facts

This specimen exhibits characteristics of a prehistoric lithic artifact (handaxe or celt), showing intentional shaping and flaking alongside weathering and patina.

Field identification & locations

Found in regions with ancient human activity near flint-bearing sedimentary deposits; identified by conchoidal fracture patterns and anthropogenic working edges.