PETUNTZE
Miscellaneous
- Family: None
- Region: None
- Mined At: Unspecified
- Raw Mineral: Yes
- Generic: No
Notes
(Richard Willis)
A “white-mound-formative” (pai-tun-tze) earth used in China for celadon and porcelain wares. Essentially a pegmatite: a granite rock of high plagioclase feldspar content — normally around 75% feldspar and 25% quartz.
The Chinese ‘tzû’ is a term for any clay material which when fired to maximum (before melting) will produce a bell-ringing tone when thumped by a finger.
The Shang period discovery of feldspathic earth (cf., pai-tun-tzû = “petuntse” = “chinastone”) which led way to the appearance of porcelain — i.e., proto-celadon porcelain (re- what occidentals were to call “stoneware”). Chinese scholars distinguish porcelain and stoneware as being with or without kaolin or its “white clay” twin.
“Ceramics prior to porcelain was permeable, opaque, and gave a dull sound when plinked; whereas porcelain was finer, more compact, and solid for its texture, and was impermeable, smooth, translucent, and gave an agreeable metallic sound when plinked.” (comment by an anonymous Chinese scholar of Chinese ceramics)
Authors
- Richard Willis (Owner)
XML
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<material name="PETUNTZE" descrip="" generic="0" rawmineral="1" searchkey="China Stone" loi="0.00">
<notes>
<note>A &#147;white-mound-formative&#148; (<B><I>pai-tun-tze</I></B>) earth used in China for celadon and porcelain wares. Essentially a pegmatite: a granite rock of high plagioclase feldspar content &#151; normally around 75% feldspar and 25% quartz.
The Chinese &#145;tz&ucirc;&#146; is a term for any clay material which when fired to maximum (before melting) will produce a bell-ringing tone when thumped by a finger.
The Shang period discovery of feldspathic earth (cf., <B><I>pai-tun-tz&ucirc; </I></B>= &#147;petuntse&#148; = &#147;chinastone&#148;) which led way to the appearance of porcelain &#151; i.e., proto-celadon porcelain (re- what occidentals were to call &#147;stoneware&#148;). Chinese scholars distinguish porcelain and stoneware as being with or without kaolin or its &#147;white clay&#148; twin.
&#147;Ceramics prior to porcelain was permeable, opaque, and gave a dull sound when plinked; whereas porcelain was finer, more compact, and solid for its texture, and was impermeable, smooth, translucent, and gave an agreeable metallic sound when plinked.&#148; (comment by an anonymous Chinese scholar of Chinese ceramics)
</note>
</notes>
</material>
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