National Geographic : 1903 Dec
PRECIOUS STONES 453 From George F. Kunz, U. S. Geological Survey The Largest Piece of Carbon Ever Found. Actual Size The carbon was found in Brazil in 1894. It weighed 3,078 carats or 20.3 troy ounces. The finder sold it for $i6,00o to a speculator, who resold it for $32,000. After it had been broken into pieces for use as a diamond drill its value was about $130,815.