Studienführer für ungeschliffene Edelsteine: Diamanten entdecken, entwickeln und einsetzen
21,73 €
In order to see what people are really made of, we have to look beyond the surface. A thorough survey of the diamond mining landscape. What looks like a rock may be your most valuable gem, waiting for a miner willing to callous their hands, cut and bruise their knees, and rub a little dirt on it.
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