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Re: native pottery part 2

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iowabow:
OK now I could use a little help from you folks! what type of containers do you think I should make and what function should they preform. Some ideas I had were minerial containers for paint, sinew storage, dryroot storage (bloodroot), seed storage,  pine pitch storage, and something to hold feathers. I have not thought about forms yet. What ideas do you all have?

iowabow:
This is a very interesting article. I learned that the shell tempering of pottery makes the clay workable but leaves it porous. I was going to slip the outside and rub it with a stone to flatten the platelets but this report suggest that this pottery was slipped on the inside multiple times. So now I will cut the clay with water and pour for slip. I looked this morning and figured I had just a little to much clay so this should work out great. This report also support the idea that larger pots can be made if shell is used to temper rather than sand.
http://cladistics.coas.missouri.edu/pdf_articles/SEA17(1).pdf

iowabow:

--- Quote from: sadiejane on September 04, 2012, 10:47:48 am ---all of the pottery sherds i have found along the missouri river and attributed to the ioway in woodland(iirc) times
have very distinct and visible shell fragments as seen in this piece.

until your post i didnt realize they heated the shell. tho i did understand why they used it.
really am enjoying this post and plan on using yr gathered knowledge to produce some primitive pottery.
thanks!

--- End quote ---
If anone has pictures of pots please post them I would really like to see examples to get ideas from.

iowabow:
I now have lime which is calcium hydroxide. Everything that i can read says that i need to add calcium carbonate to wet clay. Now the other problem is that they say that the shell was heated and ground to a powder, this would be calcium oxide. So the question is do you add the powder as calcium oxide or as calcium carbonate. See once the oxide hits wet clay it turns to hydroxide. Lime is hydroxide not chalk/carbonate. Help if you have the answer I cant find it in the writings.

iowabow:
Maybe no connection but lime was added to corn to make it taste better. A pot made with shell would have produced some lime during its use as the calcium carbonate was heated an water present. There is a process called nixtamalization. Maybe not connected but if these pots made corn better tasting then why cook with a different pot.

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