France, 1858: Seminal Paper on the Metallurgy of Platinum (St.-Claire-Deville & Debray)

The market price fell 20% in 1857-8, seen here and reported in German industrial journals.  This seminal paper reported increasing efficiencies in the production of refined Platinum and outlined the range of prices, ore to manufactures. 

Deville and Debray likely rounded a Cartagena price of Fr 667.7 per kg; see Colombia 1858.

1857: 1 Troy Ounce platina (Cartagena: Choco ore) ~ Fr 21.77  (USD $ 4.25)
1858: 1 Troy Oz platina (Cartagena: Choco ore) = Fr 20.77 (USD $ 4.15)

1858: 1 Troy Oz platina (Paris: 75% Ore?) = Fr 18.66
1858: 1 Troy Oz platina (Paris: Retail, 75% Ore?) = Fr 24.88
1858: 1 Troy Oz platina (Paris: Retail, 75% Ore?) = Fr 27.99

1858: 1 Troy Oz Platinum (Paris: Mfg) = Thl 10.37  (USD $ 7.43)
1857: 1 Troy Oz. Platinum (Paris: Mfg) ~ Fr 37.33  (USD $ 7.26)

1857: 1 Troy Oz. Platinum (scrap) = Fr 23.33 (USD$ 4.54)

1858: 1 Troy Oz. Platinum (scrap) = Fr 18.66 (USD$ 3.63)

Belge reference:

c.1857/8
Citation: L' éclairage au gaz à l'eau à Narbonne et l'éclairage au gaz Leprince ...; B. Verver (1858) p.27


 

Citation: Polytechnisches Journal, Volume 154 (1859) p.190

1893: Platinum price History, semi-refined ingot or market

1857: Refined Platinum price reference, 20% higher than 1858

The Price of European Platinum ingot rose after 1858.

Citation: Le Moniteur scientifique du Docteur Quesneville: journal des sciences pures ...(1878) p.61