Dictionary of Gems and Gemology

2009 Edition
| Editors: Mohsen Manutchehr-Danai

Helam Mine

Reference work entry
DOI: https://doi.org/10.1007/978-3-540-72816-0_10503

location of a kimberlite fissure diamond-bearing in Zwartruggens, South Africa.

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© Springer-Verlag Berlin Heidelberg New York 2009