Navajo Spiny Oyster Cuff Bracelet by Charles Johnson 3f1f15f4580652d9bc1116b9e76f27b7 8 million years ago

8 million years ago

and Cuperite in quartz

They could grow between 4-8 inches in length

similar in look to the chambered nautilus

and weighing up to 47 metric tonnes

Navajo Spiny Oyster Cuff Bracelet by Charles Johnson 3f1f15f4580652d9bc1116b9e76f27b7 8 million years agoAt the early age of 15 Charles Johnson began his apprenticeship in lapidary and silversmith work, under the tutorage of his parents, His mother was a fifth generation jeweler and his father a second. As Mr Johnson continued to learn his art, his skills developed to where at the age of 20 he was a full time silversmith. Then, while continuing his silverwork, he tried his hand at lapidary work. Although he began in the practice of traditional Navajo