I feel I must put my foot in here as well. 
I was sent one of these ingots by Artzi many years ago I have not forged it as I said I would..it is still in ingot/ball form and I am shamed for not getting to this sooner. 
I will have it chemically tested for elements. 
 
While in India I saw many of these at a friend's shop in Udiapur and asked for a sample..it had 14% chromium when tested and did forge out to a nice pattern. 
I will post images when I locate them. Some of these balls were as large as oranges others as small as grapes. 
 
Ric
		 
		
		
		
		
		
		
		
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