PHYSIOGRAPHY. CLASS II. 



4. The largest and most distinct crystals are found in 

 Iceland, the Faroe islands, and the vicinity of Aussig in 

 Bohemia. It is contained in the agate balls of Oberstein 

 in Deux Fonts. Various simple and compound varieties 

 occur in the Tyrol and other places in Germany, in Scot- 

 land and particularly the Western Isles, in Ireland, &c. 



6. DIATOMOUS KOUPHONE-SPAR, 



Di-prismatic Zeolite or Laumonite. JAM. Syst. Vol. I. 

 p. 365. Diatomous Zeolite or Laumonite. Man. p. 146. 

 Laumonite. PHILL. p. 45. Lomonit. WERN. Hoffm. 

 H. B. II. 1. S. 26?. Laumonit. HAUSM. II. S. 555. 

 Laumontit. LEONH. S. 448. Zeolite efflorescente ? 

 HAUY. Traite, T. IV. p. 410. Laumonite. Tabl. 

 comp. p. 19. Traite, 2de Ed. T. III. p. 151. 

 BOURNON. Trans. Geol. Soc. Vol. I. p. 77- 



Fundamental form. Scalene four-sided pyramid. 

 Inclination of the axis in the plane of the long 

 diagonal. Vol. I. Fig. 41. 



Simple forms. P + oo (M) - 86 15'*; + ^L { P \ ; 



g i c J 



?r + co (*) ; Pr + QD (/). 

 Char, of Comb. Hemi -prismatic. Inclination of 



? to P + x = 113 SO'*; of ^ to P + v> 



Pr 



Combinations. 1. . P -f GO. Fig. 44. Iceland. 



2. JT . P + GO. Pr +00. Pr + oo, Schemnitz, 

 Hungary. 



* According to BROOKE and PHILLIPS. 



