lavroffite (lavrovite)

3-Sulfoalanine coefficient of abrasiveness collecting main pressure elevation sight equal circles erasmia pulchella hobsoni Maddox rod marmoutiers moen northern pocket gophers octopole vibration pallescens pavone resmoking thung song (tungsong) time-scale geomagnetic polarity Wade's snppositories watertight door test William Edward Burghardt Du Bois yield ahead sign