Description
Large, slightly transparent willemite crystals on a gangue of lead, zinc and copper ore, typical of the M’Fouati deposit in Congo Brazzaville (Republic of Congo).
Crystals of good size and quality for the mineral species.
Willemite is a zinc silicate, a secondary mineral found in the oxidation zone of zinc deposits.
The base of the part is sawn off.
Here is a video of this beautiful Congo willemite:
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