TAB. LX. 



FERB.UM oxygenizatum, var. radiatum. 



Radiated Oxide of Iron, or Hcematite. 



Class 3. Metals. Order 1. Homogeneous. 

 Gen. 7. Iron. Spec. 3. Oxide. 



Div. 2. Imitative. Var. radiated. 



Syn. Brown Haematites. Kinu. v. 2. 1 63. 

 Brauner Glass-kopf. Emmerl. v. 2. 323. 

 Fer oxide Haematite. Haiiy, v. 4. 1 05. 



1 his variety of haematitic iron ore, with which I was fa- 

 voured by Mr. Murray, comes from near Edinburgh, and has 

 not long been discovered. It has much the appearance of 

 crude iron, with nearly the same shining fracture in the 

 direction of the radii, but blacker and duller in the opposite 

 direction. These radii sometimes terminate like brushes in 

 the matrix, which is a brown clay. It is not magnetic. 



Some of the variety figured at Tab. 56. is occasionally 

 found about it. Theends are some of them terminated beyond 

 the matrix, like the ends of a bunch of wires, or obscurely 

 crystallized with the ends approaching those of Tab. 62, 

 and 63. Mr. Kirwan says, " seldom steel grey, 



" External lustre 2, 3. Internal lustre 2, 1. 



"Spec.Grav. from 3* 789 to 3*951. Streak reddish or yel- 

 lowish brown." In ours the powder is the same colour as 

 the streak. " It is not magnetic until calcined. Before 

 the blowpipe, it blackens, and gives to. borax a yellow tinge 

 with some effervescence." 



We do not know that this has been analysed. 



