What unique visual feature is highlighted in the 'Rainbow Room' of Niagara Cave?

The 'Rainbow Room' in Niagara Cave is particularly noted for its colorful mineral deposits that reflect light, creating a stunning visual spectacle. These mineral formations can include various hues due to the presence of different elements and compounds that have been deposited over thousands of years. When light interacts with these minerals, it refracts and reflects, resulting in vibrant colors that resemble a rainbow.

This characteristic not only makes the Rainbow Room a visual highlight of the cave but also serves as a fascinating example of the natural processes at work within limestone caves. The interplay of light and color enhances the overall experience for visitors, as they observe how geological formations can create such beautiful and diverse visual effects in nature. Such a feature showcases the natural beauty that can be found in caves, and why the Rainbow Room stands out as a significant attraction within Niagara Cave.