A Window / Time Link quartz crystal is a crystal with an extra diamond-shaped facet. By counting the facets or faces on the crystal, you will determine if you have more than six. If you do, you have a Window. This is a difficult crystal to read. It may take some practice to master this skill. They are one of the most commonly misidentified crystal configurations.
Window / Time Link quartz crystal can help in accessing other realms, as well as for accessing our own soul (window to the soul).
You may work with a window as an entry point (a way to get into an area). Window crystals also provide another point of access to an area that you might not have considered.