Did you know Agate is a rock that consists mainly of silica, which are finely grained micro crystalline silica rich quartz particles. Silica is hard, colourless and unreactive compound which occurs in nine crystalline forms of which the main three are quartz and it’s the most abundant mineral on earth. It is easily affected by temperature, pressure and the surrounds of the mineral which in turn gives the myriad of colours that quartz takes on. It is the flow of molten silicas through cracks and fissures in volcanic rock that show up in polished agate specimens.
Floodplains are an alluvial system made up of fine silts and sands that are deposited during flood and tidal events. It is the constant action of water that continues to make the silts and sands finer and finer which causes the layering on the floodplain. It is the different moisture levels in the silts and sands that are highlight the layers on the floodplain which are seen from above. Agate is captured from 6000 feet or 2km and is a large floodplain bounded by a series of creeks collecting water from the plains to flow into Van Diemen Gulf.
When I started to work up the piece I was interested in the different moisture levels within the floodplain and endeavoured to highlight next to the areas around the creek lines which had received the last neap tidal influence. Agate is a natural mineral which has a life of its own during its creation as it flows through fissures and cracks and the top end flood plain is a modern live version of this in some ways as it flows and moves with tides and floods.
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