21 



A Neiii Mi ita <i!<>gical Nomenclature. 



Genus 1. Ceasistylus.* 



H— 6 — 6.5. t» =2.3 — 3. Color light-green; colorless. Commonly hot ryoidal. 



Sp. 1. ('. acrotomus, Prchnitc. 



Genua 5. Nephrus. 



H = 5.5— 7. G=2.9— 3.4. Massive. 



Sp. 1. N. amorphus, Nephrite. 



2. y. peritomus, Saussurite. 



Genus G. Petalus. 



H=6— 6.5. G -'2.4—2.5. Massive. 



Sp. 1. P. rhombicus, Pctaliic. 



(lenus 7. Lazulus. 

 H = 5 — 6. G— 2.8 — 3.1. Color blue or green. Cleavage indistinct. 



Sp. 1. L. amorphus, 



2. L. rhombicus, 



3. L. tricllnatus, 



( renus 8. 



II ^4—0.5. 



Sp. 1. S. taixagonum, 



2. S. Herschellianum, 



3. S. oleaceum, 



4. S. opalescens, 



5. S. ortl)i)!oinuni,t 

 ft. S. penicillin), 



7. S. triclinatura, 



8. S. \ c-ii\ ianum, 

 !». S. roseuni] 



10. S. quadratura, 



11. S. ( rehlenianutn, 



12. S. rolcanicum, 



Turquois. 



Lazuli/r. 

 Blue Spar. 



Si'ATUM. 

 G=2. 1—3.1. 



Nepkeline. 



Herschellite. 



ElcBolite. 



Labradorite. 



Feldspar.. 



l\ ricline. 



Albih . 



Anal hid ■-. 



Latrobite. 



Scapolite. 



Gehlenite. 



(iisnii'ilihiii . 



Sfatiniub. 



( renus !>. 



II 5.6- 



S|>. 1. S. decolorac , Manganese- Spar. 



2. S. rhombohedrus, 

 ; ;. ■'>. S. renlformis, 



Trodstite. 

 Bustamite. 



» K • i • /" I a column, in allusion to the resemblance to a 



biokeo column, often presented by the crystali "t iln* specie*. 



f '< '■', and ■',■■ •■ I ■ leave, refers to the fact, that its two cleavage* 



•re- at rifjht angles *\ith ooc soother. 



