How to choose parts based off of their values?

In ReplicatedStorage there is a folder called Blocks, and inside of the folder there are folders that are the title of blocks with values that consist of their brickcolor, material, maxdepth spawn, and minimumdepth spawn

i am trying to make a script that will insert a random block depending on its max/minimum depth

local material = game.ReplicatedStorage:WaitForChild("Blocks"):GetChildren()

function makeMine(m,a)
	for i = a,1,-1 do 
		wait()
		for i,v in pairs(m:GetChildren()) do
			if v:IsA("BasePart") then
				if v.Name ~= "Spawned" then
					local depth = v.Position.Y / v.Size.Y
					local dt = {}
					for i,x in pairs(game.ReplicatedStorage.Blocks:GetChildren()) do
						if x.MaxDepth.Value <= v.Position.Y + 1 then
							if x.MinimumDepth.Value >= v.Position.Y + 1 then
								table.insert(dt,x)
							end
						end
					end
					local random = dt[math.random(1,#dt)]
					local n = v:Clone()
					n.Parent = m
					n.Position = v.Position - Vector3.new(0,v.Size.Y,0)
					n.BrickColor = random.BColor.Value
					n.Material = random.BMat.Value
					v.Name = "Spawned"
					dt = {}
				end
			end
		end
	end
end

while true do
	workspace.Mine:Destroy()
	local m = game.ReplicatedStorage.Mine:Clone()
	m.Parent = workspace
	makeMine(m,15)
	wait(160)
end

Bumpp