PHYSIOGRAPHY. 



Andalusite. Anglesite. 



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nite and primitive slate. It is generally associated with Quartz, some- 

 times with a decomposing Mica. 



5. This species was first discovered in the province of Andalusia in 

 Spain. Crystals of very considerable magnitude are found in the valley 

 of Lisenz near Inspruck in the Tyrol. It also occurs near Braunsdorf in 

 Saxony, at Herzogau in the Upper Palatine, at Forez in France, in grey 

 dolomite containing Hornblende in the Simplon, and in black limestone 

 with granular Iron-Pyrites at Coulepeux in the valley of Ger, (Haut Ga- 

 ronne.) in mica-slate in Aberdeenshire in Scotland, in the counties of 

 Wicklow and Dublin in Ireland. In the United States at Westford, 

 Mass, it occurs abundantly both crystallized and massive. A few hand- 

 some crystals have also been found at Litchfield, (Con.) 



6. The Chiastolite or Macle is found at a great number of places ; but 

 no where so plentifully, or under such a diversity of forms, as in the 

 towns of Lancaster and Sterling, (Mass.) It is in Lancaster that the 

 single crystals of Macle imbedded in Quartz have been found, and which 

 occur under the common form of Andalusite. Foreign localities of 

 Chiastolite are the following : St. Jago di Corapostella in Spain, Bareges 

 in the Pyrenees, the Bayreuth, Hartz, and Cumberland in England. 



ANDREOLITE. (See Harmotome.) 

 (See Vivianite.) 

 Prismatic Lead-Baryte. 



ANGLARITE. 

 ANGLESITE. 



MOHS. 



Primary form. 

 103 42'. 



Secondary forms. 

 Fig. 21. 



Right rhombic prism. M on M' = 



Fig. 22. 



