__^^*s, MINER 



FIRST SUBSPECIES. 



COMMON GALEN,, or LEAD-GLAN 

 Gemeiner Ble mcr. 



iclers. Colour lead^H 

 various particular for 

 in cubes, and octahedrons. Internally 

 dent and glistening, and lustre meta 

 tad Perfectly sectile. Uncommonly easily fi 



Durham. 



Constituent Port*. Lead, 



Sulphur, 



Iron, 0.50 ! 



Thomsn*. 



j Cm*, 'loni. It occi. 



f "f'JI^K in primitive, t: 



the mining 



and America, 

 v all the lead of commerce is o 



SECOND SUBSPECIES. 

 KNA, or LEAD GLANCE, Jameson. 



mer. 



S^CAar^ri.-ColourUv.d-grey. Occurs mas- 

 sive disseminat, -cular. Internally glnnm. 

 iri.'and lustre metallic. - "'"^ ' aamt 



varieties passes into flat conchoidal. 



A L O G Y. 



Constituent Paris. 



563 



Molvlxlenn, 



Sulphur, 

 k^ta&ol- in Gehlen's Join 



u. I 

 and Gtograpi 



.granite Ite ' 



,,1',. hire, Cornwall, and 



erknd. ' < >thcr Wllll)tr " 



VI. GOLD 01. A 



n.itic : not axilrangible. Pure 



= "' '' ' malic 



' ' 



nc* 



-grey. < ( 

 illv fflietenine, and lustre me- 



liquc 



Com pact 

 Cialeni. 





uriui 



-100 



varieties panes 



OCCU ' 



I'.i 





I'M. 



CleavaffC perfect, according to 

 nvilli-'jle Hardness = 1 !.">. 





lurium. 



5V. '> 



3.0 

 1.3 



MUI.TIDE- 



ble. 



nal Characters Colour 

 rrev andiron-black. Occurs niasn 



ti,,,l. in ,,bii,,ur four-sided pri.ni.. a 

 ,. mr . 1 Menially splendent, and lintre 



metallic. Intenudly shining. It u sectile. 

 Constituent Parti. Tellurium, 

 Lead, 

 Gold, 



Sulphur, 



Copper, 



Sil. 



proth, Beit. b. iii. s. 32. 



.moitic and Geographic Silualiont.-lt ..leurs in 

 veins that traver-e p.rphyry, at Nagyag m Tran-yKa- 



.._h is worked for the gold it contains. 

 GENUS V. MOLYBDENA 



Molydan Glanz, Moll*. 

 Rhomboidal. Very flexible. Hardness : 



^i^RiioMuoiVu. MOLYDDENA, Jameson. Rhomboc- 



-100 



irked as an 'ore of gold, and as an 

 BISMUTH r: 



mutN 



ce. 



. granular 



le. 



,ur, 40100 

 M 

 Gfoanof 



veins wall, Sax- .ther coin:' 



, (1I.ANCE. 



Thi 



blackish and steel-gr.-v. II '' 

 cleavaoe is axifrantrible ; inHexible ; scctile. 

 into 



GLANCE, or On; 



><cr.- 





Rhombaid- 



il Molyb- <' r " 



'is. >Va.-serb!i-i, Werner. 

 noa. mboid unknown. Cleavage pa- 



rallel with terminal planes of a six-sided pri-iin. Ture 



',,'al C*arrlr.-Colmr fresh lead-grcy. Oc- 

 cur usually masoive, diMeminated, in p! -ome- 



-tallizcd in six-sided prisms. Internally splen- 

 dent or shining, and lustre metallic. It writes with a 

 Ii-grey streak on paper, but with a greenish-grey 

 itreak on porcelain. 



-Glanz. Mo/i*. an 



i rnmid unknown. Cleavage prismatic. 

 Lead-grev. Hardness = 2. Sp. gr. = *.<>. !.(>. 



,',/ Ckaracterf~-Gdem Icad-gr.-y. Occurs 

 massive, disseminated, in distinct concretions, which 

 are radisted, fibrous, and granular ; alo crystallized in 

 oblique four-sided prisms, and in six-sided prisms. 

 I.u-trc from glistening to splendent and metallic. Frac. 

 ture uneven and even. 



Constituent Parlt. Antimony 74-. Sulphur 2 

 100. Bergman. 



Ceogiiotlic and Qtographic .Siliintin.i.Ui 

 veins and beds in primitive and transition rocks. 

 Dumfriesshire there are veins of it in grey-wackc, and 

 in Banffshire it is distributed among rocks of the pn- 

 mitive class. There are considerable deposites of it on 

 the Continent, and also in America. 



