Colombia, 1911

In 1911, total export of Colombian platina was estimated to be 373.25 kgs (306.06 Fine Pt) where 198.16 kgs or 53.09% of the total ore was exported to the USA.  (Fiscal Year, June-June, lowers Pt Totals.)  Where the value was estimated at  £69,179, with an estimated purity of 80-85%.  The chief town for platina trade was Istamina (San Pablo) and Novita.

1911: 1 Troy Ounce platina (Colombian, 82%) = £ 5.7648

June 1910 - June 1911: 171.18 kgs
1 Troy Oz. platina (Colombian export, 82%) = USD$ 28.86
1 Troy Oz. Colombian Platinum (Colombian, .9999) = USD$ 32.76

1 Troy Oz. platina (NYC: Colombian, 82%) = USD$ 32.
1 Troy Oz. Platinum (NYC: Colombian, .9999) = USD$ 39.

January 1910 - January 1911: 198.16 kgs

At the US valuation of USD$ 20.67, Colombia produced 5,153.36 kgs. of Fine Gold; platina ore (82% Pt) was 7.24% the Gold yield and 6.75% the total Au/Pt estimate; at purity, Platinum (~306 kgs) was 5.24% of the Colombian Au/Pt yield.
 
The 2.88% difference between Cartagena and New York prices (USD$ 0.97) might account for shipping and insurance costs.

1911: 1 Troy Ounce Gold (Cartagena: Colombian ore) = USD$ 17.307
1911: 1 Troy Ounce platina (Cartagena: Colombian ore) = USD$ 26.86
1911: 1 Troy Ounce platina (USA: Colombian ore) = USD$ 31.80
1913: 1 Troy Ounce platina (NYC: Colombian ore, intrinsic) ~ USD$ 41.39

1911: 1 Troy Oz. Platinum (refined ingot, NY mkt) = USD$ 43.12

Citation: The Jewelers' Circular, Vol. 81, Issue 2 p.89 (9/3/1920)


Citation: Engineering and Mining Journal, Vol. 107, #2,  ; American Institute of Mining Engineers (1/11/1919)

Citation: Minerals Yearbook 1911 ; US Geological Survey, (1912) p.1000


Citation: The Mineral Industry, Vol. 21 p.683


Citation: The Jewelers' Circular, Vol. 85, Issue 2 (11/1/1922) p.77


Citation: The Platinum Metals ; Arthur Douglas Lumb (1920) p.55

Citation: Commercial relations of the United States with foreign countries ... ; Dept. of Commerce and Labor p.109

Widely disparate estimation.

Citation: Colombia ; Phanor James Eder p.125


Underestimated by 23%, if Crude Ore.

Citation: Papers by command, Vol. 99 ; House of Commons p.409


Citation: Colombia: Physical Features, Natural Resources, Means of Communication ...  V. Lévine (1914)