150 Washington — Suggestion for Mineral Nomenclature. 



Hypersthene Subgroup. 



Hypersthenates, orthorhombic. 



Enstatite, Mg 2 Si 3 6 Magnesium hypersthenate 



Bronzite, (Fe,Mg) 2 Si 2 6 Ferromagnesium hypersthenate 



Hypersthene, (Mg,Fe) 2 Si 6 2 Magnesiferrous hypersthenate 



Diopside Subgroup. 



Diopsidates, monoclinic. 



Diopside, CaMgSi 2 G 6 Calciraagnesium diopsidate 



Hedenbergite, CaFeSi 2 6 Calciferrous diopsidate 



Wollastonite, Ca 2 Si 2 6 Calcium diopsidate 



Augite, j l\u^e)fA\,Fe),SiO, AI fercalmag diopsidate 



Acmite, NaFeSi 2 O e Ferrisodium diopsidate 



Jadeite, NaAlSi 2 6 Alumisodium diopsidate 



Spodumene, LiAlSi 2 O fi Alumilithium diopsidate 



Pectolite, HNaCa a Si 3 9 Acid sodicalcium diopsidate 



Rhodonite Subgroup. 

 Hhodonates, triclinic. 

 Rhodonite, Mn 2 Si 2 6 Manganese rhodonate 



Babingtonite, ■! J, «'. q Ferricalcium rhodonate 



Olivine Group. 

 Olivinates, R /; 2 Si 2 4 , orthorhombic. 



Forsterite, Mg 2 Si 2 4 Magnesium olivinate 



Monticellite, CaMgSi 2 4 Calcimagnesium olivinate 



Chrysolite, (Fe,Mg) 2 Si 2 4 Ferromagnesium olivinate 



Fayalite, Fe 2 Si 2 4 Ferrous olivinate 



Tephroite, Mn 2 Si 2 4 Manganous olivinate 



G-laucochroite, CaMnSi 2 4 Calcimanganous olivinate 



Chondrodite Series. 



Chondrodates, R // 2n _ l (R // (F,OH)) 2 (SiO.) n , orthorhombic 

 Prolectite, Mg(Mg(F,OH)) 2 (Si0 4 ) 



Magnesium uni-chondrodate 

 Chondrodite, Mg 3 (Mg(F,OH)) 2 (Si0 4 ) 2 



Magnesium bi-chondrodate 

 Humite, Mg.(Mg(F,OH)),(Si0 4 ), 



Magnesium ter-chondrodate 

 Leucophoenicite, Mn 5 (MnOH) 2 (Si0 4 ) 3 



Manganese ter-chondrodate 

 Clinohumite, Mg 7 (Mg(F,OH)) 2 (Si0 4 ) 4 



Magnesium quadri-chondrodate 



