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Mar. 6th, 2009 09:36 amSedimentary rocks do *not* do well in the rock tumbler. This is obvious once I think about it, but I didn't think about it when I dumped in all the rocks I could scrounge around the house in an effort to reach the 8 oz. minimum. Now I have to try to remember my eighth grade geology lessons well enough to be sure I'm not putting such rocks in the tumbler. I expect I'll manage, but why on earth didn't I think of it before?
I'm starting to look into buying more grit for the tumbler. Scott thinks I can find it cheap in small quantities, but I'm not so sure. I've done only the most superficial search so far (I don't really want to run the thing again until we can put it outside, and that requires warmer weather) and haven't yet found grit sold in small quantities except when it's packaged with other stuff that I don't want. I may simply have to bite the bullet and buy it in bulk. (For relative values of 'bulk.' What I've found that's affordable involves one pound each of the first two types of grit and a half pound each of the third and fourth.)
Now that the weather is starting to improve, Cordelia and I are starting to pick up interesting looking rocks with an eye toward polishing them. I think we need to experiment to find out what works and what doesn't. While the ground's frozen, we can't pick up many rocks, but every time we get enough of a thaw, she and I look. There's a bit of sidewalk by her school that's completely disintegrated, and we've found some nice rocks there. (I find it a bit ironic that the city demanded that all homeowners in our neighborhood fix damaged sidewalk last year but didn't require that the school do so. That side of the street, along a steep hill, is nasty and treacherous when the weather gets at all bad.)
I'm starting to look into buying more grit for the tumbler. Scott thinks I can find it cheap in small quantities, but I'm not so sure. I've done only the most superficial search so far (I don't really want to run the thing again until we can put it outside, and that requires warmer weather) and haven't yet found grit sold in small quantities except when it's packaged with other stuff that I don't want. I may simply have to bite the bullet and buy it in bulk. (For relative values of 'bulk.' What I've found that's affordable involves one pound each of the first two types of grit and a half pound each of the third and fourth.)
Now that the weather is starting to improve, Cordelia and I are starting to pick up interesting looking rocks with an eye toward polishing them. I think we need to experiment to find out what works and what doesn't. While the ground's frozen, we can't pick up many rocks, but every time we get enough of a thaw, she and I look. There's a bit of sidewalk by her school that's completely disintegrated, and we've found some nice rocks there. (I find it a bit ironic that the city demanded that all homeowners in our neighborhood fix damaged sidewalk last year but didn't require that the school do so. That side of the street, along a steep hill, is nasty and treacherous when the weather gets at all bad.)
