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Member Since 21 Sep 2012
Offline Last Active Apr 13 2017 10:57 PM

Posts I've Made

In Topic: Mica Crystals

21 July 2016 - 01:03 PM

You don't want to breathe mica.  

Acute Health Effects
  • In 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 Effects
  • Repeated 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 Mica
  • Wearing 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/...dered-mica.html

In Topic: Birdhouse In Chinese Red

28 June 2016 - 01:22 PM

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://audubonportla...tuaries/nestbox .

In Topic: Qotw: Is Your Artistic Practice A Product Of Genetics Or The Environment?

27 August 2015 - 12:37 PM

I can't say my genetics led to being a potter, but my family heritage includes farmers and inventors.
I think that may be why I like to tinker and make tools for specific jobs.I guess the closest I have is my Irish great great grandfather made plaster decorative pieces on the ceilings of Victorian houses. And I am somehow related to the Arts and crafts printer, William Seltzer Rice. Abraham Seltzer was in the Textile Industry in Germantown and Jonathan Seltzer was at Enterprise manufacturing in Kensington Philadelphia, and George Selsor patented numerous pieces for his company, Germantown Tool works in Germantown, Philadelphia.His Coffee grinder was in the Industry Building in the 1876 Centennial Exposition in Phila.  I have been doing a lot of genealogy in my retirement.  :rolleyes:


I had to google the coffee grinder to see if it was what I had in my mind's eye.  Yup!  http://365project.or.../365/2011-05-25