It is assumed diagonally in a shaft on a Saturn outer moon. Toxic Beryllium is in black. Sapphire is grey. The appliances and cabinets interior are a clay maghneisum blend striped and coated with sapphire. The black puck floor is clay granite aluminum oxide wrapped with tungsten or molybdenum mesh. The yellow pipes and vents are said metals with a high vapor pressure. The balls are Titanium Oxide listello. The external environment is assumed to vent away from the station as Beryllium dust may occur. Quantum dot displays and sensors are assumed everywhere but hard to display at low resolution. Other see through substrates are doable. 80% materials may need to be in situ.