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| A variety of Agate A variety of Agate or Jasper impregnated with Iron Hydrate. [Clark, 1993 - "Hey's Mineral Index"] Originally described from Hrbek Mine, Svatá Dobrotivá (St Benigna), Beroun (Beraun), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic. |
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