[D0124AAO], Letter from J W Hamilton to Thomas Alva Edison, December 16th, 1901
https://edisondigital.rutgers.edu/document/D0124AAO
Transcription
[TAE Marginalia] >Would like a sample as I am doubtful about the platinum, be sure & mark sample in every way for identification E< Dec 16th 1901 Mr. Thomas A. Edison Sir;- Do you know when there is a refinery that can separate copper & platinum? or do you have a process. We have a copper mine in Wyoming 45 miles due west from Laramie. The ore contains 27 to 32% copper & 30 to 165 dollars worth of platinum [Cu ton]. The ore is a Blue Covelite & occurs in the oldest geological formation known. We have a large body of ore & must get some process to separate the mettles & know it can be separated at (Swansea Wales) but do not like to ship it so far. Please answer & oblige Yours truly, J.W. Hamilton