What is the finishing material that is a thin concrete surface that can be used over brick, tile, or wood?

Stucco is a finishing material that consists of a mixture of cement, water, and aggregates, which creates a durable surface. It is specifically designed to be applied over various substrates like brick, tile, or wood, making it versatile for use in different construction scenarios. This application adds aesthetic appeal and can provide added insulation and weather resistance.

The properties of stucco allow it to adhere well to a variety of surfaces, which is why it is commonly used as an exterior finish on homes and buildings. It can be applied in multiple layers, allowing for textural variation, and it can be painted to achieve different colors and designs.

In contrast, other materials listed do not serve the same function. Brick veneer is a non-structural layer of brick meant for aesthetic purposes but doesn't serve as a finishing layer like stucco. Wood siding is a traditional cladding material that typically doesn’t provide a concrete surface finish, and wood shake shingles are also primarily used for roofing purposes, focusing on aesthetics rather than being a thin surface coat that can bond over existing materials. Thus, stucco is the correct choice for its intended application as described in the question.