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Written in Stone post
Rolf

Typical geodes

In this article, we explore the fascinating world of geodes, hollow spaces in rocks filled with beautiful minerals such as chalcedony, agate, and quartz. Well-known examples include the amethyst geodes from Brazil and the Las Choyas “coconut” geodes from Mexico. We also discuss lesser-known but unusual varieties such as the Puma agates and Red Fox agates from Argentina, and the Dugway geodes from Utah, USA. Discover how the locality and composition of geodes give them a unique identity, and learn about the local names and typical features that set them apart.

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Gem or Scam? Library
Rolf

Analysis: Nuummite

Find out all about genuine Greenland nuummite and similar rocks! Learn how to recognize real nuummite and how to distinguish lookalikes from China and India. Also a nuummite-related rock from Finland is discussed. Read the article for tips on how to identify genuine nuummite and avoid misleading imitations. With images to show the differences.

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