Glow left

local sindex = 2
local hasGlowStone = false
while true do
	while turtle.getFuelLevel() < 500 do
		turtle.refuel(1)
	end
	turtle.turnLeft()
	turtle.dig()
	while hasGlowStone == false do
		turtle.select(sindex)
		local data = turtle.getItemDetail(sindex)
		print("Item name: ", data.name)
		if data.name == "ExtraUtilities:color_lightgem" then
			hasGlowStone = true
		else
			sindex = sindex + 1
		end
	end

	turtle.place(sindex)
	turtle.turnRight()
	turtle.dig()
	turtle.forward()
	turtle.dig()
	turtle.forward()
	turtle.dig()
	turtle.forward()
	turtle.dig()
	turtle.forward()
	turtle.dig()
	turtle.forward()
	hasGlowStone = false
end