Mt. Jasper Rhyolite

[ToddsPoint]

Here's a couple of points I made out of MJ rhyolite 20 yrs. ago. A guy from NH sent me some chunks and wanted some points. Mean stuff for a midwestern knapper not used to it. I sent him these 3 points. Gary

 

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[Jon Stewart]

Nice work. Did you have to cook it up first? Maybe some heat will tame it a bit.

 

[kansa54]

Nice job on the points. Was it tough to flute? What method did you use to flute? Looks like it took a couple shots on the one side.
Beautiful work.

 

[ToddsPoint]

Nice work. Did you have to cook it up first? Maybe some heat will tame it a bit.

Rhyolite is an igneous rock. It's already been heated by volcanic action. Heat won't change it, unfortunately. Born mean, always mean. Gary

 

[ToddsPoint]

Nice job on the points. Was it tough to flute? What method did you use to flute? Looks like it took a couple shots on the one side.
Beautiful work.

I fluted it with a lever jig. First side shown I got a good long flute but crooked. Had to take another one to flatten it out a bit. Side two, first flute was a dud. Reset platforms and took two narrower flutes so five altogether. Gary

 

[arrow86]

Nice work , looks like you figured out how to work with it. It has some nice color to it for rhyolite most of the pieces I find are just a dull grey but sometimes a few nice streaks of a darker blue color running thru

 

[Jon Stewart]

You may want to toss it into a kiln and crank it up to 900. Bet that will change it. I know of guys that cooked some lower grade obsidian and it changed a bit. It is just a thought. Still nice looking work on that tough stuff.