276 results for tree

Although "tree" is a common word, there is no universally recognized definition of what a tree is.  As I continue my pursuit in learning about Petrified Wood, I realize that there aren’t a lot of good

Tree Agate is a form of Dendritic Agate. Tree Agate is a chalcedony with dendrite inclusions of moss colored green minerals. Tree Agate is an unusual agate as it is usually opaque white and doesn't...

Below I will discuss what Petrified Wood actually is and how it is formed. Recently we bought a very large collection of Petrified Wood mostly self-collected in the Southwest United States from the 19

Let me state this right up front-I am not an expert in petrified wood. I have been in the lapidary business for over 40 years, and have, on occasion, sold petrified wood, plus I have some very good fr

This is a piece of petrified forest floor! It is from the Kirkby collection and it was self-collected sometime in the 1930's to the 1960's. On the back a handwritten note says: “6472-Tsuga sp. Hemlock

Once again, I would like to explain that, though we have been in the rock and mineral business for 40 plus years, Petrified Wood is not our specialty. However, recently we bought a HUGE collection and

Another type of “damage” seen in Petrified Wood is from insects. Though origin and evolutionary history of this is poorly understood to date, as the fossil record is scarce, evidence for herbivory ins

Moss Agate is so named for its mossy shaped or bush like inclusions. These are usually formed with mineral impurities, and are often growths of iron or manganese oxides. Moss inclusions are...

Dendritic Agates have very thin tree-like inclusions of iron, manganese, or other metallic oxides that grow in natural fractures. These inclusions called dendrites were named after the Greek word...

The Petrified Forest National Park is located in Northern Arizona. It is located 26 miles east of Holbrook and just off of I40. In northeastern Arizona, a badlands desert known as The Painted Desert e

Fossils are a record of a past life. They are the remains of plants and animals that lived millions of years ago. A fossil can be a part of the animal; such as the shell or bone. It can be an egg,...