Africa's Richest Mafia You've Never Heard Of

What this episode covers

On one remote hillside in northern Tanzania lies the only source of tanzanite on Earth — a gem a thousand times rarer than diamonds. This documentary follows how that single mountain became the centre of a global criminal economy, where foreign corporations, corrupt officials, and international smugglers stole billions in blue stone while the people living on the mountain were left in poverty or buried in its tunnels.

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Frequently Asked Questions

How long is this episode of Declassified?

This episode is 34 minutes long.

When was this Declassified episode published?

This episode was published on May 5, 2026.

What is this episode about?

On one remote hillside in northern Tanzania lies the only source of tanzanite on Earth — a gem a thousand times rarer than diamonds. This documentary follows how that single mountain became the centre of a global criminal economy, where foreign...

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