1.1" Rough Green Prehnite Crystal Mineral Specimen Location Imilchil, Morocco Turtle each has a unique crystal

each has a unique crystal structure that forms under different temperature and pressure conditions

The Niobrara Formation is subdivided into two members: the Fort Hays Limestone Member and the Smoky Hill Chalk Member

creating a lightweight but effective armored covering

These deposits preserve an unparalleled concentration of fossil fish

giving them an almost surreal appearance

1.1" Rough Green Prehnite Crystal Mineral Specimen Location Imilchil, Morocco Turtle each has a unique crystalLocation: Imilchil, Morocco Weight: 1. 3 Ounces Dimensions: 1. 1 Inches Long, 0. 9 Inches Wide, 0. 7 Inches Thick The item pictured is the one you will receive. Prehnite is a pale green mineral that varies from translucent to transparent and belongs to the phyllosilicate group. First identified in 1788 and named after Dutch Colonel Hendrik von Prehn, it is commonly found alongside minerals such as calcite and epidote in basaltic rock formations. This