Unique Stone

When I take a walk to the mosque, on the road filled with coral, I went through the usual way. A few weeks ago on the road I found the fossil teak, and now I find again a stone that looks unique. On the stone there are 3 colors, namely brown, dark brown, and black. Stone circled in white, on the one hand to form a line crossed. I do not know the name of this stone, but there are people who say the name of the stone "Tread Starling". What do you think?

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