Feldspar Cannot be scratched by a steel knife, but it can scratch window glass. Can Topaz be scratched by a fingernail? The numbers on the scale classify minerals only by their hardness. That is, topaz is harder than quartz, which is harder than feldspar. … Substances with a hardness ofRead More →

Scratches are the most common damage that your exterior window glass can incur. Scratches can be caused by several elements such as tree branches rubbing against the exterior glass. They could be caused by children, pets, or even be the aftermath of recreational activities. Can glass be scratched easily? WhileRead More →

The green scrubber used in your kitchen will scratch glass, but the white scrubber is a softer material that is safe to use on glass. Many new windows have coatings on them which can be damaged, so be sure that you know the manufacturer’s recommendations for cleaning your windows. WillRead More →