Although diamonds can occur in aTluvial gravels and beach sands, their only primary source is kimberlite. Approximately 88 per• cent of the world's diamond production comes from the primary source, so it is important to understand the tectonic controls of kimberlite emplacement. Any tectonic model proposed has to take cognisance of the empirical…
Diamonds have inspired dreams of wealth and power throughout history. Until modem times, most diamonds were insignias of royalty and were beyond the reach of the com• mon person, who could only elicit visions of the astounding beauty and wealth brought forth by diamonds. It's no wonder that other gems and precious metals have historically taken a…