Description
Astrophyllite is a very rare, brown to golden yellow hydrous potassium iron titanium silicate mineral. The name comes from the Greek words astron meaning “star” and phyllon meaning “leaf.” sharply with the light colored matrix the mineral is regularly found within. Astrophyllite is usually opaque to translucent, but may be transparent in thin specimens. The mineral is mostly interesting for scientists and collectors, though sometimes it is also used in jewelry where it is fashioned into cabochons.