Kimberlite is the geological formation holding diamonds. This book Kimberlites: Mineralogy, Geochemistry, and Petrology
is about the mineralogy, geochemistry and petrology of kimberlites. This is all that the prospecting geologist needs to know, when engaging into diamond mining. The Blue Hope DiamondThe "Hope Diamond" is a dark steel blue diamond weighing 45.52 ct. and was in the Kollur mine in Golconda, India found. The rough diamond weighing 112 ct. At present, this diamond is in the Smithsonian Institution. (See also Blue Diamonds)
In 1668 sold the French traveler Jean Baptiste Tavernier the diamond to King Louis XIV of France. The jeweler Sieur Pitau grind the stone into a triangle, teardrop-shaped diamond weighing 67.50 ct. Den "French Blue" or "Tavernier Blue". Set in gold diamond hanging from a necklace of the king, which he wore on ceremonial occasions.
On 11 September 1792, the diamond was stolen during the French Revolution. He has been to Le Havre and then moved to London where he was to be sold. It was stolen.
1824 appeared on the diamond in a gemstone collection of Henry Philip Hope. As Henry Philip Hope died, war broke out around the diamond between his three nephews. Henry Hope bought the "Hope Diamond" and the jewel was in 1841 in the "Great Exhibition of London" and in 1855 in the "Universal Exhibition" on display in Paris.
The other owners were:
His wife Adele to 31 March 1887
Henry Francis Hope Pelham-Clinton, who went bankrupt. In 1901 he sold the Hope diamond for 29,000, - £ at London gem dealer Adolf Weil.
Adolf Weil sold it to Simon Frankel, a diamond merchant, who brought him to New York. There, his value was at 141,032, - estimated (at that time about 28,206, - £).
Frankel sold the diamond in 1908 in Salomon Habib in Paris for 400,000, - $
Habib sold the diamond to the gem dealer Rosenau.
Rosenau 1910 it sold for 550,000, - francs to Pierre Cartier.
In 1911, Cartier sold the stone to the theater actress Evalyn Walsh McLean, who died in 1947. The trustees sold the Hope Diamond to the New York diamond merchant Harry Winston.
Harry Winston put the Hope Diamond in his "Court of Jewels" from, a gem show in the U.S.. In August 1958, the diamond was shown at the "Canadian National Exhibition". The lower facet was ground to increase the brilliance of the diamond.
Now one of the diamond of the "National Gem Collection" at the Smithsonian Institution. In 1962 he exhibited in Paris and 1965 in South Africa. In recent exhibitions, the diamond weighed 45.52 ct. The classification of the degree of color Hope diamond is "fancy dark grayish-blue": The Blue Hope.
