Miners reported significant amounts of genuine ruby(corundum) in surface deposits in Mozambique. Prices are falling as increased numbers of the gem come to market. Mine owners are also faced with the prospects of illegal miners stealing the rough gems from remote mine sites.
Most gem quality rubies have been found in Burma(Myanmar) and have a distinctive color, often called "pigeon's blood".
While no extraordinary-sized crystals have been advertised as found, marketing efforts could see a change in public announcements soon. Over the past 3-4 decades, many natural stones have been treated in various ways to enhance color and appearance. These methods include heat treatments, dyeing, oiling(to hide flaws on surface, surface coating(s), doubling/capping, and irradiation treatment(dangerous).
As always, buyer(s) beware when it comes to precious gems, especially over the internet.
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