heres some argillite points. you dont see this material everyday

[rwaterman00]

well heres the best argillite points to date i have made. i quarry this stone allong the delaware at a location which i read in an old book is a quarry which existed during the clovis period. there is a nice pic of my boy spalling at 10 yrs old.
he spalls it and i carry it down the hill across and down the creek. ( i passed out one time with a backpack full.) i think he got the better deal

[jamie]

great work. stuff looks similar to low grade onondaga

[JustinNC]

that's nice looking stuff!

[Bill Skinner]

Does it smell like diesel feul when you first break it?  Bill 

[rwaterman00]

no thats onondaga that smells oily
argillite smells kinda like clay.
 it's indurated clay actually. the same as slate and shist. i think what makes it different is there is a high amount of silica in it.

[leapingbare]

I've knaped that stuff before.
A long long time ago!
Good points! and cool photos