tl ** -1 '<* I 



SYNONYMES, AND PRIMARY FORMS. 497 



Natrolite. 

 Needle-stone. 

 Stilbite, 

 ZINC. 



carbonate. 



crystallised. An obtuse rhomboid:, P on P', 



107 40' ; measured by Dr. Wollaston. 

 botryoidal. 

 earthy. 



3 cadmiferous. 



oxide. 



manganesian ; red oxide- A regular hexagonal 



prism, as determined by W. P. from cleavage. 



aluminous ; Automolite ; Gahnite. 



crystallised. A regular octahedron. 

 granular. 



silicate. A right rhombic prism^ M on M', 102 35'. 

 sulphate ; Gallizenstein, 

 crystallised, 

 fibrous, 

 earthy, 

 sulphuret ; Blende. 



crystallised. A rhombic dodecahedron. 

 amorphous, 

 cadmiferous. 

 fibrous, 

 compact. 

 ZIUCON ; Hyacinth ; Jargon. An octahedron with a square 



base ; P on P', 123 20' ; P on P", 84 20'. 

 ZOIZITE, has been considered by the Abbe Haiiy as a variety 

 of Epidote, an error into which he has probably been 

 led by the crystals of Epidote which are found in the 

 Zoizite from Carinthia. It is however a distinct species, 

 having for its primary form a rhombic prism^ M on M', 

 116 30'. There is apparently a cleavage transverse to 

 the axis of the prism, but not sufficiently distinct for 

 measurement, which indicates that the prism is oblique 

 from an obtuse edge. 

 Zurlite, or Zurlonite. 



ZURLONITE. 



