THE FUNDAMENTAL FORMS OF THE SIX SYSTEMS OF CRYSTALS. 



Regular ok Monometric 







Square. Prismatic 





iTiL- /Hoi fin 







PyriUa, Mlihltj^e. 



IfitfTit f/daAetAvn 



wtth a pH^m tuuf t/u: fgrminei/ 



Ahoat /O^Mruwi/A, ieZariff to tM^ Kfy-jt^^rL /V--, Tu.Z<:J/''"J-Sp,tr, Su^fair .'lu^,Aa^«t p^' ^nhm 





MoNocLiNic oi Oblique Prismatic 





4 MnamJj li»lo'i^ to tAu .'SyaU-rn. £fkelo*x., /tlapar (Jy-paurr^^ Muxt.^ MunJilanjdM.jiu^iJt^ ^c 



6"^ . Triclinic or Doubly Oblique Prismatic 



(iibcroi, 2iD<iheatn 





Pwiiu»i by G.MUubt Sujikm. F O 3,.<J.c. 



A^ifiiu.^ laJ>r(ular /^e^^p^ yil6U^. ^C. 



