OK-I have selected another core of Catoctin Greenstone. Metamorphosed basalt from the Catoctin Formation of the Blue Ridge in Va. These cobbles occur as bed cobbles in west-facing streams. This cobble came from the same spot as the last one featured in the prior string(that failed). It seems totally sound. It has a lot of mass at a 9" x 5.25" x 2". There is plenty of material to make what I want to make-another grooved axe implement.
Patience in the face of fatigue and nagging pain is the requirement for making these. The bushing with chert cobbles is quite slow. The upside is that the process removes so little material it's hard to go too far too fastl
"Slow to make-slow to break." -Silsby
Here's the starting form with the first targets for reduction lined on.
First wing removed by pecking and grinding. 3 hr.s 45 min.
Dog days are here-I'll post up things as I can.
PD (and Aurora)