If you are losing 1/8” of that you are potentially losing carats, but also losing depth of the dome (which can diminish the clarity of the star). When you have a 20 carat potentially star sapphire and you have rounded it to find the star orientation, typically you would halve that to make 2 reasonable star cabs. This is a thing for me because I’m making jewelry with it. so I can’t cut a smaller stone into segments without risking wasting some stone (about 1/8”). The one complaint I have personally is that the blade is pretty thick. Also things like labradorite or moonstone (feldspar) that have distinct cleavage planes - pieces can leave off and go flying. Sometimes you get a piece that has inclusions (cracks) that you wont see until you start cutting and then pieces fly off. Use protective eyewear or at least wear glasses, though. It is my understanding that you can actually touch the blade with fingers and not get cut! (I haven’t tested but there are lots of videos online). It has its own water tank that wets the blade, but we have used it on everything from corundum to Amazonite to tiger eye and labradorite. I use a plain old tile saw (rigid) with much smaller circumference of blades.
Tuscon of course has a bigger show but more rough material and used equipment seems to show up at Quartzite. If you like rocks and cutting them you will love Quartzite if you have never been.
Saw that didn cut fingers professional#
If you are finding quality agates in quantity you could probably sell them at Quartzite and pay for a saw and maybe a used professional grade grinding/polishing machine. If you are finding larger size agates with cracks just whack them with a hammer so they break along the cracks and cut the remaining solid pieces.
Saw that didn cut fingers cracked#
You can cut the cracked agates safely if you just go real slow to a crack, then tap it to see if it is weak and falls off. (oil is a much better cutting agent than water) Most use mineral oil in them, water is usually reserved for softer stones that would absorb the oil. They are really nice since it is easy to make multiple perfectly parallel slices from a stone. Often a couple hundred will get you a real 10" lapidary saw with auto feed and a hood to keep the oil spray off. Rockhound Paradise!! LOTs of good used lapidary equipment for sale there most years. Well, if you have fun with the tile saw, get yourself up to the big gem and rock meet in Quartzite, AZ that runs the whole month of January with the most attendance the first couple of weeks.
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