Cluster of red Heulandite crystals on matrixYour model is disabled. For more details go to Edit properties3D Model
Locality: Fassa Valley, Italy
Size: 8 x 6.8 x 5.2 cm
Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O
Description: Heulandite is one of the most common zeolite minerals. It has a very distinctive crystal form and has a noticeable pearly luster on cleavage surfaces. Almost all Heulandite specimens in collections are Heulandite-Ca. A distinction among the different Heulandite types is rarely made, and the members are generally just termed Heulandite without further breakdown. Heulandite is named after English mineral dealer Henry Heuland (1778-1856), who would frequent trips to Iceland collecting Heulandite and other zeolites.
See also this unique aesthetic Heulandite with snail-like shape: https://skfb.ly/6VxGM
Concept & 3D-modelling by dr. Andrei Ionut APOPEI