He kohuke kore-whakarewa te Kaolin, he momo uku me te toka uku i hangaia mai i ngā kohuke uku o te rōpū Kaolinite. Nā tōna āhua mā, ngawari hoki, e mōhiotia ana ko te oneone Baiyun. I tapaina i muri i te Kāinga o Gaoling i Jingdezhen, Porowini o Jiangxi.

He mā, he ngawari, he rite ki te Mollisol tōna kaolin parakore, he pai te kirihou, te ātete ahi me ētahi atu āhuatanga ā-tinana me te matū. Ko te nuinga o ngā kohuke he Kaolinite, he halloysite, he hydromica, he Illite, he Montmorillonite, he quartz, he feldspar me ētahi atu kohuke. He whānuitia te whakamahinga o te Kaolin i roto i te hanga pepa, i ngā uku, me ngā rauemi ātete ahi, ā, whai muri ko ngā paninga, ngā whakakī rapa, ngā karaihe enamel, me ngā rauemi mata sima mā. He iti noa te whakamahinga i roto i te kirihou, te peita, ngā tae, ngā wira huri, ngā pene, ngā whakapaipai o ia rā, te hopi, ngā patu pepeke, ngā rongoā, ngā kakahu, te hinu, te matū, ngā rauemi hanga, te tiaki whenua, me ētahi atu rāngai ahumahi.
Kua noho te kaolin hei rauemi mata nui mō ngā tini ahumahi pēnei i te hanga pepa, te uku, te rapa, te miihini matū, te paninga, te rongoā, me te tiaki whenua.

Ko te umanga uku te umanga tuatahi, ā, ko te mea tino whānuitia te whakamahinga mō te whakamahi i te kaolin. Ko te horopeta whānui ko te 20% ki te 30% o te tauira. Ko te mahi a te kaolin i roto i ngā uku ko te whakauru i te Al2O3, he mea whai hua mō te hanganga o te mullite, hei whakapai ake i tōna pumau matū me te kaha o te sintering. I te wā o te sintering, ka pirau te kaolin hei hanga mullite, ka hanga te anga matua mō te kaha o te tinana. Ka taea e tēnei te ārai i te whakarerekētanga o te hua, te whakawhānui ake i te pāmahana mura, me te hoatu hoki i te tinana ki tētahi taumata o te mā. I taua wā anō, he āhua kirihou, he āhua piripono, he āhua whakatārewatanga me te kaha here o te kaolin, e whakarato ana i te āhua pai ki te uku porcelain me te porcelain glaze, e pai ai te tinana uku porcelain mō te huri, te whakatō me te hanga. Ki te whakamahia ki ngā waea, ka taea te whakanui ake i te whakamarumaru me te whakaiti i te ngaronga hiko.

Ehara i te mea ko ngā uku anake ngā whakaritenga tino pakari mō te kirihou, te piri, te whakahekenga maroke, te kaha maroke, te whakahekenga sintering, ngā āhuatanga sintering, te ātete ahi, me te mā o te kaolin i muri i te tahunga, engari kei roto hoki ngā āhuatanga matū, inā koa te noho mai o ngā huānga chromogenic pērā i te rino, te titanium, te parahi, te chromium, me te manganese, e whakaiti ana i te mā i muri i te tahunga, ka puta he ira.
Ko te whakaritenga mō te rahi o te matūriki o te kaolin ko te pai ake o te angiangi, kia pai ai te kirihou me te kaha maroke o te paru porcelain. Heoi, mō ngā tukanga whakarewa e hiahia ana kia tere te whakarewa, kia tere te tere o te keri, me te tere maroke, me whakanui ake te rahi o te matūriki o ngā kai. Hei tāpiri, ko te rerekētanga o te tioata o te Kaolinite i roto i te kaolin ka pā nui ki te mahi hangarau o te tinana uku. Ki te pai te tioata, ka iti te kirihou me te kaha piri, ka iti te whakahekenga maroke, ka teitei te pāmahana sintering, ā, ka whakaitihia hoki te ihirangi poke; Engari, he teitei ake tōna kirihou, he nui ake te whakahekenga maroke, he iti ake te pāmahana sintering, ā, he teitei ake hoki te ihirangi poke e rite ana.