Crucible Steel ?

[Rick]

Sorry for creating confusion there Tom .
The new picture is of a Balkan or Greek Yataghan .

Both of these blades have been strongly etched .

I don't want to digress but the Yataghan blade shown has many areas that show a crystalline look .

I'm sadly ignorant of the effects of differing heats during forging .
I think I was sleeping during class .