A New Mineralogical Nomenclature. 33 



Genus i. Euchroa.* 



H = l.5— 2. G=3.4— 3.7. 



Sp. 1. E. rubella, Realgar. 



2. E. aurea, Orpvment. 



ORDER XII. THE1INEA. 



Genus 1. Sulphur. 

 Sp. 1. S. pyramidal is, Native Sulphur. 



CLASS III.— HYPOGjEA. 



ORDER I. PITTINEA. 



Genus 1. Mellis. 

 H=2 — 2.5. G = 1.5 — 1.6. Transparent — translucent. Color light. 

 Sp. 1. M. pyramidalis, Mcllitc. 



Genus 2. Succinum. 



H=2 — 2.5. G = l — 1.1. Transparent — translucent. Color light, 

 Sp. 1. S. Electrum, Amber. 



Genus 3. STEATUS.t 



G=0.65. Whitish. Crystalline. 



Sp. 1. S. acicularis, Scheererite. 



Genus 4. Bitumen. 



H=0 2.5. G=0.8 — 1.2. Amorphous. Solid individuals opaque, or *ui- 



translucent. 



Sp. 1. B. fragrans, Rctinitc. 



2. B. flexile, Mineral-Caoutchouc. 



3. B. commune, Bitumen. 



* E%>oo $ , fi nel V colored, + Ertaft/at. 



VOL. IV. 5 



