Agate, Tree

Tree Agate is a form of Dendritic Agate, a white or colorless variety of Chalcedony with visible, fern-like impurities of manganese or iron. These impurities are known as dendrites, which derives from the shape at which they occur. Most Dendritic Agate on the market comes out of Brazil, Mexico or India, although beautiful specimens can be found throughout the USA.

  • Enhances rapport with living things, connecting you to nature.
  • Strength, perseverance.
  • Unshakeable self-esteem.
  • Helps the immune system fight infection.
Hardness: 6.5-7 Mohs
Specific Gravity: 2.57-2.64
Refractive Index: 1.53-1.55


Tree Agate tumbled stones in a bowl
Tumbled Tree Agate

Michelle Ferris

Owner, curator, and buyer for Crystallography Gems. The brick and mortar shop is relatively new, and has been around since 2021 in Seattle's Georgetown neighborhood. Our presence as a business and as a rock and gem show has been longstanding, since 2013. Our shop offers crystals, minerals, gems, rocks, jewelry, and metaphysical tools. We work hard to inform our customers, giving them the education they need to be confident, intuitive, and wise collectors of crystals and minerals.