Trying to position a part beneath another part. Can anyone help me?

So I'm trying to get the special mesh to be aligned under the meteorite as I am making a meteorite but I don't know how to do it.

local p = game.Players.LocalPlayer
Mouse = p:GetMouse()
local Head = p.Character.Head
Mouse.Button1Down:Connect(function()
		--------Meteorite----------------------
		local rock = Instance.new("Part",workspace)
		rock.BrickColor = BrickColor.new("Dirt brown")
		rock.Material = "Slate"
		rock.Transparency = 0
		rock.Anchored = true
		rock.CFrame = p.Character.Head.CFrame*CFrame.new(0,10,-15)
		rock.BackSurface = "Smooth"
		rock.BottomSurface = "Smooth"
		rock.FrontSurface = "Smooth"
		rock.LeftSurface = "Smooth"
		rock.RightSurface = "Smooth"
		rock.TopSurface = "Smooth"
		---------------rockmesh--------------
		local mesh7 = Instance.new("SpecialMesh",rock)
		mesh7.MeshId = "rbxassetid://651296532"
		mesh7.Scale = Vector3.new(0.3, 0.3, 0.3)
		--------------FlameBrick--------------------------
		local flamebrick = Instance.new("Part",rock)--how can i rotate this to be under the meteorite--
		flamebrick.BrickColor = BrickColor.new("Institutional white")
		flamebrick.Material = "Neon"
		flamebrick.Transparency = 0.95
		flamebrick.Anchored = true
		flamebrick.CFrame = Head.CFrame*CFrame.new(0,12,-16)
		flamebrick.BackSurface = "Smooth"
		flamebrick.BottomSurface = "Smooth"
		flamebrick.FrontSurface = "Smooth"
		flamebrick.LeftSurface = "Smooth"
		flamebrick.RightSurface = "Smooth"
		flamebrick.TopSurface = "Smooth"
		--------------flamebrickmesh---------------------
		local mesh8 = Instance.new("SpecialMesh",flamebrick)
		mesh8.MeshId = "rbxassetid://437245586"
		mesh8.Scale = Vector3.new(0.9,0.9,0.9)
end)