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Post by fernwood on Mar 4, 2021 7:37:45 GMT -5
I don’t want to mess this up. Have been marking some rough rocks for cutting/slicing when the weather warms up. How you determine the best orientation when slicing geodes/thundereggs? Most of those pictured are small enough to run through my trim saw. I am pretty sure these are all geodes, due to weight. Thank you  |
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mikeydbd
starting to shine!
Member since October 2020
Posts: 39
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Post by mikeydbd on Mar 4, 2021 9:07:28 GMT -5
watching this!
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Post by greig on Mar 4, 2021 12:25:44 GMT -5
I am no expert, but have smashed, chiseled and cut a few. My best results were from crossing the centre (intersecting) as many of the bulbs that stick out as possible. Also, I try to cut lengthwise if the rock is longer than wider. Sometimes, you can get a hint of what it looks like inside if you put the rock onto a strong flashlight.
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Post by fernwood on Mar 5, 2021 7:04:48 GMT -5
Thanks. Appreciate the advice.
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Mar 5, 2021 12:29:54 GMT -5
As for cutting thundereggs, this is the way to go.... www.zianet.com/geodekid/howtocut.htmAs for geodes, most have fracture points, I usually chisel them on the points of fracture.. Old saying also - A thunderegg can be a geode, but a geode can never be a thunderegg... There is a difference... Good luck and most importantly, have fun... Thumbs up...👍👍 |
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Post by greig on Mar 5, 2021 16:02:23 GMT -5
As for cutting thundereggs, this is the way to go.... www.zianet.com/geodekid/howtocut.htmAs for geodes, most have fracture points, I usually chisel them on the points of fracture.. Old saying also - A thunderegg can be a geode, but a geode can never be a thunderegg... There is a difference... Good luck and most importantly, have fun... Thumbs up...👍👍 Good advice. If it is already cracked, then break it there. On the other hand, I have never heard the old thunder egg saying. However, I heard somebody at a party say "Don't dump that bowl, there's still a thunder egg there". I understand that was referring to weed burned on the outside and green inside. ;-) |
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geodes4u
starting to spend too much on rocks
Member since October 2009
Posts: 144
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Post by geodes4u on Mar 8, 2021 14:40:01 GMT -5
Geode means "earthlike". It bulges at the center. Tap on the equator.
Cut the same way.
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