# Other Glass: Exploring Unique and Specialty Glass Types
When we think of glass, common varieties like window glass, tempered glass, or stained glass often come to mind. However, there is a fascinating world of “other glass”—specialty types with unique properties and applications.
## 1. Borosilicate Glass
Known for its heat resistance, borosilicate glass (e.g., Pyrex) is used in laboratory equipment, cookware, and high-performance lighting. It withstands thermal shock better than ordinary glass.
## 2. Smart Glass
Also called switchable glass, this high-tech variant can change transparency with electricity, light, or heat. It’s used in privacy windows, skylights, and energy-efficient buildings.
## 3. Fused Quartz Glass
Made from pure silica, fused quartz has exceptional optical clarity and resistance to extreme temperatures. It’s essential in semiconductors, UV lighting, and space telescope lenses.
## 4. Fiberglass
Composed of fine glass fibers, fiberglass is lightweight, strong, and used in insulation, automotive parts, and boat hulls.
## 5. Uranium Glass
A vintage collectible, uranium glass contains small amounts of uranium oxide, giving it a distinctive green or yellow glow under UV light.
## 6. Cobalt Glass
Deep blue cobalt glass is used in optics, decorative art, and even to filter out sodium glare in streetlights.
### Conclusion
Beyond everyday glass, these specialty types showcase the material’s versatility in science, technology, and design. Innovations continue to expand the possibilities of glass in modern applications.
Would you like a deeper dive into any of these varieties?