In 1899, Jack Rowley discovered an outcropping in the middle of Maricopa County, Arizona, which turned out to be a gold-bearing copper vein. Over the years, many copper minerals have been mined there, including gold, wulfenite and lead.
FINDING CHRYSOCOLLA
Chrysocolla had always been present, but it was never the miner's main focus to dig. It still wasn't until just a couple of years ago, when miner, Ed Davis Jr., unearthed a solid, silicated chrysocolla from the mine. This mix of copper minerals is reminiscent of the Inspiration Mine chrysocolla. Much of what has been dug out has a beautiful color array of blues, greens, reds and yellow, plus a really nice strata pattern.
To obtain some of this material, Ed Davis Jr. can be easily found on Facebook, where he posts available slabs.
この記事は Rock&Gem Magazine の October 2023 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、8,500 以上の雑誌や新聞にアクセスしてください。
すでに購読者です ? サインイン
この記事は Rock&Gem Magazine の October 2023 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、8,500 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
MORGAN HILL POPPY JASPER
In California, there are very few places to collect semi-precious stones. Many locations from the past have been either exhausted of the material or the land has been developed.
THE ACORN
The briolette gemstone has the same design attributes of a regular gemstone, however, the pavilion is elongated and the crown is usually domed. This is perfect for an elegant pendant, earrings or a pendulum.
HOW TO PUT A PROTECTIVE CAP ON A CAB
To protect a specimen cab, often a cap is needed. In my case, I had a slab with the because of the color of the background and the pattern. This background had a more silicified consistency than most sandstones. It had no graininess like most sandstone, so I'm inclined to compare it to a jasper. The pattern was typical of a dendrite.
The Resilient Revival of Anne Brontë & Her Stones
For the first time, the Anne Brontë rock collection underwent complete description and identification, and along with Professor Hazel Hutchison of Leeds University and Dr. Enrique Lozano Diz at ELODIZ (a company specializing in spectroscopy analysis), an analysis of that collaboration, Anne Brontë and Geology: A Study of her Collection of Stones, was published in April 2022 in Volume 47, Issue 2 of the peer-reviewed journal, Brontë Studies & Gazette.\"
Amazing Women with Rock-Solid Careers
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The Case of the Bleeding Glacier
It's a gory sight called Blood Falls. Ever since British geologist Thomas Griffith Taylor first noted it in 1911, it has been a mystery.
Asteroid Samples Are Said to Hold Invaluable Secrets
If Only Scientists Can Pop the Lid!
Paleontologists Embrace a New Method for Seeing Fossils within Rock
Fossil bone can be delicate. Attempts to remove it from a hard rock matrix by picking and scratching or etching with acids can be time-consuming and/or may end up obliterating that which you hope to study.
Need a Map of the Ocean Floor?
Call in the Seals!
A Step Closer to Hydrogen, the "Climate-Friendly Fuel"
As I reported last June, the world is racing to find sustainably renewable, nonpolluting sources of energy to replace our carbon-based reserves of coal, oil and gas.