Reference work entry
A granite cone is a product of spherical weathering. It looks like a spike on a small moulding stone, with the sharp end pointing upwards, similar to the pointed top of a smooth granite peak or a granite pillar. It can also look like a cell phone antenna, the legs of an overturned table or a rhinoceros horn. Spherical weathering begins with granite being washed by rain water, followed by rock disintegration and erosion. It can also take place in localised areas with quartz enrichment or by weathering of granite dykes with high concentrations of siliceous materials. Examples are Mobile Phone Rock and Swan Peak in Huangshan and Double Teats Peak and Penguin Rock in Sanqingshan (Fig. 25).
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