Obsidian – Fire, Water and Earth

Recently, I had a wonderful visit to the Sedgwick Museum of Earth Science in Cambridge with the Society of Children's Writers and Book Illustrators, also known as (SCBWI.) https://www.scbwi.org/ I fell in love with the crystal section. There are so many amazing exhibits: Quartz, smoky Quartz, Precious Opal, Rose Quartz, Amethyst, Beryl, Heulandite, Malachite, Calcite, to …

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