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Thread: Arts and Crafts

  1. #11
    Join Date
    Jun 2013
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    668

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    Tiger's Eye has a Moh's Scale hardness of 6.5-7, so it was quite hard to grind. Outwardsly hard silicates are generally strong at a molecular level so there wasn't much chipping. The stone in question was an odd shape so it really needed some tidying up. It was also quite a small stone, so fiddly, dubiously worth the effort, but the sample was a little different, I liked it and enjoyed doing it. Overall, it just took a bit of patience but needs a final polish yet then I'll post a picture.

    Creating dust from fibrous materials such as Tiger's Eye poses more of a health hazard than just normal stone dust. You should really be wearing a mask for that anyway - or wet grinding, as I was.

    Your description of 'green dust everywhere' causes me a small concern. Malachite dust is quite toxic and appropriate controls should be in place to minimise exposure.

  2. #12
    Join Date
    Apr 2012
    Location
    East Sussex
    Posts
    85

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    i really meant green sort of paste as used some water for coolant and lubrication I put a rag in my bench skin and then chucked it away.

  3. #13
    Join Date
    Jun 2013
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    668

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    Good stuff!

    I found this litte tip whilst perusing a grinding / polishing cheat sheat of mine earlier fyi:
    Use Tin Oxide for hard stones such as agate and jasper
    Use Zam / Holy Cow for finishing Malachite

    hope this helps

  4. #14
    Join Date
    Apr 2012
    Location
    East Sussex
    Posts
    85

    Default

    Brilliant I am planning to slice another piece of the stone and want to polish it after. This is a photo of the original rubbish photo thoughClick image for larger version. 

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