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  1. Mica Crystals

    You don't want to breathe mica. Acute Health EffectsIn some people, mica can have the immediate effect of irritating the eyes and skin, causing redness and itching. Inhaling mica can cause wheezing, coughing and shortness of breath as it irritates the mucous membranes lining the lungs. For contact with the eyes or skin, the area should be flushed with clean water for at least 15 minutes. In cases of inhalation causing acute symptoms, the person should be moved to a space with fresh air and given oxygen if breathing is difficult. Chronic Health EffectsRepeated high exposure to mica can cause fibrosis in the lungs, where the constant irritation from inhaling mica dust causes scarring of the lung tissue. This results in the chronic coughing and shortness of breath typical of pneumoconiosis, a disease often seen in people who work in mines where they are exposed to coal dust. The carcinogenic effects of mica are unclear, but considering other known health effects it is probably best to avoid exposure as much as possible. Avoiding Exposure to MicaWearing protective clothing, gloves, goggles and face masks when working with mica is the best way to avoid skin contact and inhalation. Protective gear should not be taken home; instead it should be washed on site every day. Using engineering controls such as isolation and proper ventilation of work sites is also essential for reducing exposure. Mica is considered a hazardous substance, and work sites that do not enforce the legal exposure limits should be reported to OSHA as unsafe. from http://www.ehow.com/info_8551607_harmful-effects-powdered-mica.html
  2. I made a stoneware birdhouse and wrens have nested 2 years, and chickadees one year. The wrens do like to scold you for being nearby. I do have to keep it in deep shade to avoid cooking the babies (also in KS). For the right dimensions (especially the size of the opening), check out this information from Audubon. http://audubonportland.org/files/sanctuaries/nestbox .
  3. I had to google the coffee grinder to see if it was what I had in my mind's eye. Yup! http://365project.org/digitalrn/365/2011-05-25
  4. Since you're in Florida, have you ever tried using Spanish moss?
  5. First Time Mixing Glaze

    Does anyone know what sort of mesh a permanent cone coffee filter is? I picked one up for a dollar or so, thinking I might use it on small test runs of glaze. Can't find any information on the mesh size on google. Like this: .
  6. I have used some purchased square glass plates (with no foot ring) as hump molds; you just have to treat the surface and watch like a hawk for the right time to remove the slab from the mold.
  7. These kinds of hangers are practically invisible. (Weight obviously an issue.) http://hardwareonlinestore.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=58970&virtuemart_category_id=53005&gclid=CO-ojcfCjsECFcRAMgodZ2wABw
  8. Tenmoku Leaf Bowl Question

    I gave this a try with fresh young birch leaves (very thin), layered onto fresh tenmoku glaze. However, the areas with the leaves turned out as completely naked clay after the firing!
  9. White Clay Body Advice

    Oh boy, now your in trouble Matt from Matt and Dave's clay is Matt Katz, who moderated clay and glaze technical before you. They’ve only been around a few years, still working on expanding I presume. Rovin opened in 1957 and is on its third set of owners. They've stayed fairly local. I think they went out of business, unfortunately. http://www.mattanddavesclays.com/
  10. There is micaceous clay in New Mexico; pots made from this is used on an open flame. See http://www.felipeortega.com/micaceouspottery.html. http://www.felipeortega.com/pdf/CaringforyourVessel.pdf
  11. Template Material ?

    Tyvek is good (the stuff priority mail envelopes are made of). Easy to cut, waterproof.
  12. You can also use the rubbery mesh shelf liner material.
  13. Just curious, if it's buried in the soil, who would see the glazing?
  14. ? You know that UV light can damage your eyes, right?
  15. Fixing Crazing...

    You might want to get that free calculator now. I see on their website that they are closing down. "Happy Trails We are writing from Matt and Dave’s Clays with news of the future. Sadly, that news is that this is the end of the line. Matt’s family has a new opportunity that they have decided to follow and we can’t continue without him. So we are going to be closing our doors. We have loved our time helping everyone make great things and we have loved seeing the things that you have made. We will miss you all. We will be accepting orders until Wednesday the 26th of March. If you would like to stock up, please place all order by then. "
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