REGNUM LAPIDEUM. 157 
CLASSIS I. 
P E T R JE, 
LAPIDES SIMPIC ES. 
Ordo I. / 
.«mdmjum4 4 Jk: .. / f , 
VITRESCENTES, chalybe percuffi 
fcintillas dant, amorphi. 
X. COS conflat fragmentis gr anui axis y 
opacis . 
C. particulis inae- 
quaiibusj rigidis. Lap . arenarius 
C* particulis in&- 
qualibus, friabi¬ 
libus. Coticula 
C* aquam tranfmic- 
tens. ( F Utrum 
2« QtJARTZllM conflat fragmentis 
angulatis y acutis 5 pellucidis • 
aquei coloris. Quartzum vulgare 
Q. aqueo album . StUx 
^ Fjiudo-Topa&iut 
< 
