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Post by glennz01 on Jan 1, 2015 14:25:55 GMT -5
I like the right side more  |
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Post by Rockoonz on Jan 1, 2015 15:18:09 GMT -5
It would be a good day to fire up the old muffle furnace, about 20 degrees out right now, might warm up the garage a little.
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jamesp
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Member since October 2012
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Post by jamesp on Jan 1, 2015 16:24:10 GMT -5
I like the right side more Me too Glenn. But the mix looks better to me. Need to cook them w/less heat, tone down the red perhaps. |
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jamesp
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Post by jamesp on Jan 1, 2015 16:26:02 GMT -5
It would be a good day to fire up the old muffle furnace, about 20 degrees out right now, might warm up the garage a little. Fire that mutha up Lee ! Set 3 gallon pot of collards up top and bake a batch of stone. |
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Post by phil on Jan 1, 2015 22:25:40 GMT -5
Try hotter! <G> That stuff was born in a volcanic flow... it can take the heat I'd think....
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Post by glennz01 on Jan 1, 2015 23:31:17 GMT -5
whats it look like unheated?
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jamesp
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Post by jamesp on Jan 2, 2015 4:44:28 GMT -5
Try hotter! <G> That stuff was born in a volcanic flow... it can take the heat I'd think.... Silicifications over this way are usually in water or damp soil. Sometimes you cannot preheat them to get the water out. They are throw aways in most cases as the moisture sends many cracks thru them. Rhyolite has zero waste so far. I found the soft tan band in this material phil as they have started to tumble, but not many pieces have it. Will cook at a colder 500F next time to see if more of the natural colors will stay. |
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jamesp
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Post by jamesp on Jan 2, 2015 4:49:43 GMT -5
whats it look like unheated?  |
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Post by iant on Jan 2, 2015 9:00:05 GMT -5
That stuff looks amazing!
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Post by phil on Jan 2, 2015 11:41:06 GMT -5
Try hotter! <G> That stuff was born in a volcanic flow... it can take the heat I'd think.... Silicifications over this way are usually in water or damp soil. Sometimes you cannot preheat them to get the water out. They are throw aways in most cases as the moisture sends many cracks thru them. Rhyolite has zero waste so far. I found the soft tan band in this material phil as they have started to tumble, but not many pieces have it. Will cook at a colder 500F next time to see if more of the natural colors will stay. The stuff here in NM is in very very very dry soil, no water anywhere close. Soil not damp even when it rains it doesn't soak in. Volcanics above and below the deposits too. I've got more of that tan stuff if you like it... did I send you any of the squirrelly variegated grey purple stuff? Ugly as is, but maybe heated it might zing? dunno. I usually try and leave that stuff lay. |
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Post by glennz01 on Jan 2, 2015 14:37:15 GMT -5
That stuff looks amazing! I think I like some of the unheated better but some are better heated... I'd like some usable stuff of that some day... I doubt that I would find any around here. |
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jamesp
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Member since October 2012
Posts: 36,612
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Post by jamesp on Jan 2, 2015 19:59:06 GMT -5
Silicifications over this way are usually in water or damp soil. Sometimes you cannot preheat them to get the water out. They are throw aways in most cases as the moisture sends many cracks thru them. Rhyolite has zero waste so far. I found the soft tan band in this material phil as they have started to tumble, but not many pieces have it. Will cook at a colder 500F next time to see if more of the natural colors will stay. The stuff here in NM is in very very very dry soil, no water anywhere close. Soil not damp even when it rains it doesn't soak in. Volcanics above and below the deposits too. I've got more of that tan stuff if you like it... did I send you any of the squirrelly variegated grey purple stuff? Ugly as is, but maybe heated it might zing? dunno. I usually try and leave that stuff lay. This is a bit of everything you sent Phil: |
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jamesp
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Post by jamesp on Jan 2, 2015 20:02:39 GMT -5
That stuff looks amazing! I think I like some of the unheated better but some are better heated... I'd like some usable stuff of that some day... I doubt that I would find any around here. I heated chunks this time. That makes red toward the outside and natural toward the inside. If you heat tumble size chunks it turns red all the way through. You can lower the heat to reduce the redness. You can shorten the heat to change the skin. Many variations. |
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jamesp
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Post by jamesp on Jan 2, 2015 20:08:49 GMT -5
That stuff looks amazing! Easy to chip, tumble, heat, grind. About no fractures. About the perfect rock. After chunks are heated a small hammer will knock perfect tumbles off. And you can break it with or across the bands. Breaks much smoother after being heated. It can be very common in large quantities. Maybe it occurs in Scotland Ian. |
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Post by glennz01 on Jan 9, 2015 22:22:13 GMT -5
Is hardened rock tumbling slurry good for getting the basics of flint knapping? It has a good fracture so i'm not sure. If someone that knapps can let me know I would rather start with that compared to rock to get the idea.
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Post by phil on Jan 10, 2015 13:49:34 GMT -5
Is hardened rock tumbling slurry good for getting the basics of flint knapping? It has a good fracture so i'm not sure. If someone that knapps can let me know I would rather start with that compared to rock to get the idea. I doubt it very much. Nothing like learning using the real thing. |
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Post by Rockoonz on Jan 10, 2015 15:42:57 GMT -5
Obsidian is way too cheap and plentiful to waste your time trying to learn with anything else.
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jamesp
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Post by jamesp on Jan 15, 2015 13:53:52 GMT -5
One of the easiest knapping material is toilet ceramic. It is homogeneous and easy to control.
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Post by phil on Jan 15, 2015 14:03:56 GMT -5
One of the easiest knapping material is toilet ceramic. It is homogeneous and easy to control. around here, we call it Johnstone..... Some works well some doesn't. Lids work better than tanks or bowls. |
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jamesp
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Member since October 2012
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Post by jamesp on Jan 15, 2015 14:33:56 GMT -5
One of the easiest knapping material is toilet ceramic. It is homogeneous and easy to control. around here, we call it Johnstone..... Some works well some doesn't. Lids work better than tanks or bowls. Johnstone, perfect nomenclature. |
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