21577 - Top Huge Slender Grass Green Epidote Crystals on Matrix Imilchil Mine Morocco Neltneria Nice and rare marrellomorph primitive

Nice and rare marrellomorph primitive arthopod Furca (VanRoy 2006

It has only been excavated from the matrix in order to make it visible

Specimens: 37 g including one polished slice at UWB

• Ordovician of Argentina

This type of turtle remains are very rare

21577 - Top Huge Slender Grass Green Epidote Crystals on Matrix Imilchil Mine Morocco Neltneria Nice and rare marrellomorph primitiveWell developed crystals of epidote, Ca2Al2(Fe3+; Al)(SiO4)(Si2O7)O(OH), crystallizing in the monoclinic system, are of frequent occurrence: they are commonly prismatic in habit, the direction of elongation being perpendicular to the single plane of symmetry. The faces are often deeply striated and crystals are often twinned. Many of the characters of the mineral vary with the amount of iron present for instance, the color, the optical constants, and