Sales for paint and refractory products increased, while sales for ceramics, insecticides and rubber decreased.Ceramic and refractory uses accounted for more than 70% of domestic pyrophyllite sales.

• 对颜料和耐火产品生产部门的销售有了提高，而对陶瓷、杀虫剂和橡胶等生产工业的销售却出现了下降，其中陶瓷和耐火材料工业用量占美国国内叶腊石销售总量的70%25以上。