For decorative uses and creating visual appeal quartzite is a great choice. This stone has small crystals on its exterior that reflect light in a sparkly manner. Stone supply Dallas makes an excellent choice for fill stone in garden beds or under shrubs. These stones come in a wide array of colors and sizes to fit practically any landscaping project. Plus they are very easy to use, just pour and rake into place! Usually will have some reflective ability resembling a crystal. Makes for excellent rock garden or edging for your flower beds. These also can be found in a wide range of colors to go along with the color scheme you have already set.