104 DOMAIN I. SIDEROU5. 



and the application of the term has embarrassed 

 even the most skilful mineralogists. 



Black jasper, from Prague. 



The same, from Leipsic. 



The same, from Hainchen, near Freyberg, in 

 Saxony. 



The same, from the Pentland hills, near Edin- 

 burgh*. 



Aspect 2. Red jasper, from Saxony. 



The same, with granite adhering to both sides, 

 from the Spizleite, near Schneeberg. 



Red jasper, or sinople, with grains of gold, 

 from Hungary. 



The same, from Siberia, where it rises in moun- 

 tains |. 



Aspect 3. Green jasper, from Daouria, where 

 it composes a mountain. 



Aspect 4. Striped jasper. In green and red 

 stripes, from Siberia, where it forms a chain of 

 mountains. 



* Brongniart, 1. 327, regards the siliceous schistus of Werner as 

 a schistose jasper. He might rather, with Faujas, have called it 

 black jasper, most jaspers being schistose. As iron forms the 

 dominant principle of jasper, and black is the most usual colour of 

 its compounds, it would be absurd to reject black jasper. 



f German and Dutch travellers sometimes call red jasper coral. 



