Veracruz Amethyst

Veracruz AmethystOne of the most widely recognized and unmistakable minerals, Amethyst has been sought after since ancient times as a gemstone and decorative object. Amethyst is a form of Quartz which gets its beautiful purple tint from the substitution of silicone for iron due to irradiation. It is found in a wide range of shades from deep purple to pale violet and even pink, with color intensity usually deepest at the termination or tip of each crystal.

It is found in a wide range of shades from deep purple to pale violet and even pink

Measurement is of box

This preglabellar ring (head shield) is covered in many sensory pits which may have held hairlike features when the trilobite was alive

It has a very dramatic "head shield" which is often interpreted as a mechanism to help it stay on top of a soft ocean floor

Brittle Starfish

Middle Devion period

From the Upper Ordovician Period - Ashgill Stage - Ktaoua Formation

with color intensity usually deepest at the termination or tip of each crystal

these calymene trilobites are common in south eastern Tazzarine region of Morocco

Metacanthian Trilibite from the Mid Devonian Period

Paradoxides sp

Kataoua formation