Dims: 2.7 x 1.1 x 0.6" (6.9 x 2.8 x 1.5 cm)
Wt: 9.8 g
This small hand specimen consists of a single Prehnite epimorph- a layer of Prehnite formed around a laumontite crystal that since mouldered away. The crust is made up of hundreds of tiny, heavily-intergrown nodules that have a milky-white color with a faint green tinge and a dull, pearly-to-waxy luster. It is translucent and forms a very good cast of a laumontite crystal. A few pseudocubic apophyllites are attached to it, but there is no base or host rock present.