Marston Marble Slice 11.5cm, Lower Jurassic, UK Amplify creating structural defects known as

creating structural defects known as colour centres

often alongside Quartz and Feldspar

A natural Yowah Boulder Opal rough specimen weighing 5g from Yowah

Tourmaline in Clear Quartz Cluster 371gr

Marston Marble Slice 11.5cm, Lower Jurassic, UK Amplify creating structural defects known asMarston Marble Slice 11. 5cm, Lower Jurassic, UK Keywords: Stability, Continuity, Grounding, Legacy, Rhythm Location: Lower Jurassic, Obtusum Zone, Marston Magna, Somerset, UK Marston Marble is a fascinating fossil rich limestone found around Marston Magna in Somerset, England. Despite its name, it is not a true marble but a beautifully patterned sedimentary rock formed over 200 million years ago during the Early Jurassic period. The stone is filled