Yes, New Zealands Clutha Schist can definitely be used in a bathroom. Clutha Schist is a type of metamorphic rock that is known for its durability and attractive appearance, making it suitable for various applications, including bathrooms. It is often used as a flooring material, wall cladding, and countertop material in bathrooms. The natural texture and color variations of Clutha Schist can add a unique and visually appealing element to bathroom design. However, it is important to properly seal the stone to protect it from moisture and stains, especially in a wet environment like a bathroom.