Borindum Extraction Company 1909 antique stock certificate

Description

Up for consideration is a Borindum Extraction Company stock certificate from 1909:
#131
Issued to George G. Clark for 16 shares on July 16, 1909
Signed by James Christie as president and T. G. Phinny as treasurer
Incorporated in Arizona
Capital stock of ,000,000
Printed by Franklin-Lee Bank Note Co., New York
Uncancelled
Certificate in very good condition
Vignette of stacked metal ingots at top and horse drawn ore carts being loaded at a mine at bottom
The company was an amalgamator and processor of ore. The company made use of Royer Luckenbach’s process for amalgamation and separation of ores using electrified bodies of mercury. Borindum is the name given a chemical compound which is used for the reduction of gold, silver, copper and lead ores. In the treatment of free milling ores, the crushed pulp is passed thru a solution of borindum which is said to scour the metals. The use of borindum in the cyanidation process makes the dissolving of the metals more rapid and increases the % of extraction.