Garden Quartz, also known as Lodolite or Lodalite Quartz is basically Clear Quartz with inclusions, which can include Hematite, Feldspar, Chlorite and many other minerals that are green, cream, red, orange, and other colors. Looking into one, you get the sense of looking onto a garden landscape.
It's often used in meditation practices. Another metaphysical use of lodolite is to bring energies to effect manifestation of one's desires. Lodalite is also said to enhance communication with beings on the spiritual plane and heighten one's spiritual energies. It is used mystically to increase ESP and bring knowledge from your past lives.