Pumice stone age Permo-Triassic - Triassic. In front of the barracks the legs Chai complete, den Chai, is a rocky mountain fire in the folding of Sukhothai. The position of the outcrop Road Highway 101 break through.120 meters rock in this area are volcanic rocks dark. Which was never a war to maintain the stone who wanna before. The mineral composition of rocks and rock under the camera โพรา rice Xing, rock texture, with a Plagioclase ore size Microphenocryst.,,Plagioclase clinopyroxene characteristics and small spots, the vein and calcite epidote cutting through the rock texture, can be divided 3 key characteristics. Is 1) meat, rock ore seriate texture flower size is equally. Don't show the flow 2) meat stone no vesicle show flow found mineral flowers less.Plagioclase where meat is ground in the same direction 3) meat rocks show vesicle texture meat ground mainly glass. Show the flow and some positions and show Jigsaw-fit texture calcite crystallized with the crack effect, from the study of the an content to call the name rock.Plagioclase value angle about 16 - 20 address in the range of Andesite.
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