The meaning of the name Apophyllite, comes from the Greek words that mean 'get' and 'leaf', referring to its proclivity to exfoliate like a leaf, when heated.
These crystals comes in a range of colors, but the most common are the clear or colorless crystals, and the Green Apophyllite stones.
When this article refers to the clear crystals, this may also include stones that are opaque, and those that are a mix of white and clear.
Other less common colors are totally white stones, grayish white, yellowish, rose red shades, and some quite rare black crystals, caused by inclusions of other minerals, possibly Hematite.
They are commonly found in combination with yellow Stilbite. These stones form in a number of different configurations.
These stones have a high water content, which gives them the ability to conduct electricity. You will find them in a naturally occurring pyramid shape, as druzy crystals on another mineral, in clusters and in the massive form.
While these crystals may be found in places other than India, including Greenland, Iceland, Norway, Britain, Czech Republic, Italy, Germany, Brazil, Canada and Australia, the best stones are said to come from Poona in India.