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Java island, Donorojo area is the origin of these agates. Usually they are coloured yellowish-brown or creamy-white. Blue- and red-colours (carnelians) do occur too. Those agate-nodules are showing an irregular shape. They were all wheathered in an lateritic soil (analogue to several brazilian deposits). It is obvious because of their brownish crust. The smoothening of the edges is caused by wheathering too - fluvial influences are not visible on the surface of these nodules.
Indonesian agates are sometimes showing a fine spherulitical pattern and fortification-banding. The banding of these agates is usually wide and soft, not as sharp and finelined as similar specimen from Madagascar or Brazil. Sometimes “water-level-agates” do occur too.
