Although potentially stable at lower pressure and low temperature, the activity of water is usually high enough under such conditions that it is replaced by hydrous aluminosilicates such as muscovite, pyrophyllite, or kaolinite.
Meskipun berpotensi stabil di tekanan dan temperatur rendah, aktivitas air biasanya sangat tinggi di kondisi tersebut yang membuatnya tergantikan oleh aluminosilikat hidrat seperti muskovit, pirofilit, atau kaolinit.