How is porcelain different from other pottery?

A) Article on pottery types
(Source 1)

"Ceramic is the general term, referring to any non-metallic object that has been made by subjecting an inorganic material, like clay, to heat. Ceramic materials can be divided into three main groups: pottery, glass, and refractory materials (used in industry and manufacturing). Pottery and Glass are distinguished by their molecular structures: pottery has a crystalline structure, while glass does not. Glass flows, though at an imperceptible pace!

Regarding pottery, there are three major types: Porcelain, Earthenware, and Stoneware.

Earthenware is usually made of baked clay and must be glazed to make it impervious to liquids (i.e., it is non-vitreous). Terracotta is earthenware that has not been glazed, while Majolica and Creamware are just two of the many types of glazed earthenware.

Stoneware is a hard, vitreous ceramic, like porcelain, but is generally opaque, like earthenware. Wedgwood's Jasper Ware is one of the better-known examples of stoneware.

Of the three types of pottery, porcelain most resembles glass - it's hard, fine-grained, impervious to liquids, and usually translucent. "

So it uh goes uh something like-ah thiyus....

-chart by me!

B) Ceramic example


C) Pottery example

(Source 2)




D) Glass examples
"Seven glass vessels recently acquired by the Toledo Museum were created at the 1962 experimental workshop. The bowl and vessel at rear are by Tom McGlauchlin, a respected Toledo glass artist who died in 2011. The five objects in the foreground were created by Edith Franklin, a ceramicist now in her late 80s."


(Source 5)















(Source 6)                                                                                                    

E) Refractory materials

"Thermal Capacity Refractory Material Ceramic Fiber Blanket " (Source 7)

F) Porcelain pottery

(Source 8)

G) Earthenware pottery

(Source 9)

H) Stoneware pottery
        
(Source 3)                         (Source 4)


Bibliography
1. "Collector's Corner: Pottery Types" by Michele Alice.  EcommerceBytes.com, 2010.  URL: http://www.auctionbytes.com/cab/abu/y210/m02/abu0256/s06.

2.  "Hopi Bear Paw Pottery" by Verla Dewakuku. Southwest Affinity, 2001.  URL: http://southwestaffinity.com/artifacts/pottery.htm.

3.  "Fine Stoneware Pottery" by Andrew Quient.  Andrew Quient Pottery, 2003.  URL: http://www.andrewquientpottery.com/.

4. "Unique Coffee Mug: Handmade Stoneware Pottery" by Mark Lendsey.  Pottery Country.  URL: http://www.potterycountry.com/index.html.

5. "Glass Art Event Set for Toledo" by Tahree Lane.  Blade, 2012.  URL: http://www.toledoblade.com/Art/2012/05/13/Glass-art-event-set-for-Toledo.html.

6. "Glass Vessel, Origin: Central Asia, circa 1000 CE to 1100 CE."  Antiques.com, 2012. URL: http://www.antiques.com/vendor_item_images/ori__1986942347_1062904_Glass_Vessel_-_AMD.108.jpg.

7. "Thermal Capacity Refractory Material Ceramic Fiber Blanket ," product description.  Made-in-China.com.  URL: http://www.made-in-china.com/showroom/qiqoun/product-detailaeSxjGCdrqro/China-Thermal-Capacity-Refractory-Material-Ceramic-Fiber-Blanket-LCJ001-.html.
 
8.  "Chinese Export Porcelain," Wikipedia article.  URL: http://en.wikipedia.org/wiki/Chinese_export_porcelain.

9.  "Handled Dish with Pears" by Josie Walter.  URL: http://www.josiewalter.co.uk/.