Tag: mineral
What are Yooperlites?
What are Yooperlites? These fluorescent sodalite rocks are found along the shores of the Great Lakes and are especially popular in the Upper Peninsula...
Pyrite: The Golden Iron Mineral
Pyrite appears in over a half dozen different forms, from simple cubes to complex twinned dodecahedrons, and is found in countless deposits all over...
Exploring Danburite
Danburite is a calcium boron silicate mineral classified as a tectosilicate within the orthorhombic crystal system. Now, that’s a mouthful! In short, it is...
Mineral of the Week: Cornetite
By Antoinette Rahn
Cornetite is a mineral wherein the word “b-e-a-u-tiful” is an apt description. It is well known and greatly appreciated for its rich...
Seize the Day in Rockhounding
By Antoinette Rahn
If you were to ascribe a motto to the interest of rockhounding, lapidary, and the like, what phrase would you select?
Asking that...
On The Rocks: Much-Talked-About Hemimorphite Lacks Authenticity
By Bob Jones
One of the unfortunate aspects of any hobby is attempts to take advantage of people’s interests for financial gain. It is inevitable...
Getting to Know the Mind Behind The Arkenstone
The Arkenstone Gallery of Fine Minerals is a sponsor of
By Antoinette Rahn
There are numerous illustrations of the 17th-century phrase, “One good turn deserves another.”...
Helenite: Crafted in the Furnaces of Nature and Labs
By Jim Brace-Thompson
I was a young guy getting ready to graduate from college when it happened. On May 18, 1980, Mount St. Helens erupted...
Parting Shot: Arsendescloizite With Mimetite
By Antoinette Rahn
This specimen of arsendescloizite on mimetite caught my attention originally because of its unique color and patterns. However, a close second in...
Aragonite
By Bob Jones
The most common carbonate is calcite, calcium carbonate. It has a companion in aragonite, which is composed of the same chemistry. Since...
