244 Localities of Minerals. 



REMARKS. 



We have been familiar with the Rhode Island anthracite, 

 and with the formation of rocks in which it is found ; and, long 

 since, observed the fact mentioned by Dr. Webster. The as- 

 bestos often is in the form of the most dehcate amianthus, 

 frequently blended also with the slate rocks, which form the 

 roof and pavement of this coal. A specimen now lies before 

 us, in which a complete vein of this amianthus, with fibres 

 nearly two inches in length, connects and pervades a mass of 

 alate, supposed to be of the transition class. 



Similar facts are mentioned also by Dr. Meade, in his account 

 of the Rhode Island coal. 



RED PYROXENE AUGITE. 



Extract of a letter to the Editor, from Dr. H. H. Hayden of 

 Baltimore. 



I have very lately discovered a couple of small specimens 

 of the transparent red pyroxene, resembling fine crystals of 

 titanium, which I, at first, mistook it for. One of them is con- 

 tained in the middle of a large crystal, like the rubellite in the 

 green tourmalins of Massachusetts, but it is not the same sub- 

 stance. The pyroxene, which I have reference to, is the 

 olive-coloured epidote of some, pistazite of others, but resem- 

 bles, in this instance, the sahlite ; the crystals being divisible 

 longitudinally. Some of them are five inches long, and half 

 an inch diameter, hexaedral and double ; that is, two joined 

 together, as described by Brochant in particular. 



Some other localities, of which we have received notices, 

 may be mentioned in a future number. 



