PLATE LIII. 
Pigals 
ORPIMENT. 
MERCUR, UTAH. 
Forms: a (100), b (010), m (110), w (120) o (101), e (103), d (108), 2 (023) 
y (348), v (121), g (449), & (123), » (183), 2 (243). 
Fig. 2. 
ORPIMENT. 
MERCUR, UTAH. 
Drawn with positive forms in front. 
Fig. 3. 
ORPIMENT. 
MERCUR, UTAH. 
Basal projection of forms observed. 
