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Rock&Gem Magazine - September 2025

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मैगज़्टर एक सत्यापित स्ट्राइप व्यापारी है।

इस अंक में

Sri Lanka
The Gem Island

Salar de Uyuni: Salt & Star Wars

Collecting
Meramec Station
Road Calcite

AMAZING
Mineral Magic Show

Field Guide:
Oregon Sunstone

Volcanoes & Cider

June: The Season for Weddings—and Volcanoes?

While geologists insist Earth is experiencing no more volcanic activity than usual, you wouldn't know it if examining headlines last June. In addition to prospects of an eruption off the Oregon coast, here are a few other headlines clipped from newspapers worldwide.

1 mins

Tracking Our Four-Footed Ancestors

The family history gets older & older!

1 mins

Using Obsidian to Track an Empire

Obsidian is volcanic glass.

1 mins

Subduction Is Alive & Well on Venus

Venus is often called Earth's Evil Twin.

1 mins

Red Amber

One valuable doorstop!

1 mins

Taking the Measure of Sloths through Time

They're tiny compared to their past glory!

1 mins

Improved Alerts of Offshore Earthquakes

It is vital to get accurate readings of the place and time of offshore earthquakes, given their potential for spawning tsunamis and other extreme damage along highly populated coastlines prone to such quakes.

1 mins

Birds Embraced the Arctic Almost Since Birds Began!

Many birds migrate to Arctic nesting grounds while others settle in year-round. As many as 280 species either visit or claim the Arctic as home.

1 mins

A Fossil Mollusk? Sponge?

Just what IS this weird creature??

1 mins

Is Earth Leaking from the Middle?

Traditional wisdom holds that material contained within Earth's core is somewhat fixed and stays deep down.

1 mins

Deinosuchus

An alligator no more!

1 mins

The Strongest Evidence Yet for Extraterrestrial Life! Or not.

It certainly made for splashy headlines. Nikku Madhusudhan (University of Cambridge) and colleagues announced in The Astrophysical Journal Letters that they detected chemical signatures similar to those produced by phytoplankton on Earth, which release dimethyl sulfide and dimethyl disulfide into the atmosphere.

1 mins

Sri Lanka: The Gem Island

Ceylon, Sapphires & Serendipity

6 mins

The Amazing Mineral Magic Show

Wowing Kids & Adults Alike!

7 mins

Meramec Station Road Calcite

Finding calcite in Limestone Cliffs near St. Louis

7 mins

TERROIR FIRMER

Volcanic Basalt Shakes Up Snow Capped Cider

5 mins

ROCK & GEM FIELD GUIDE: Oregon Sunstone

Sunstone is the transparent, gem-quality variety of the mineral labradorite, a calcium-rich feldspar in the plagioclase series.

1 mins

PSEUDOFOSSILS - "Fossils" That Aren't!

Several mineral growths look for all the world like fossils.

4 mins

MOSAIC

In January 2025, a group of designers was challenged to create or modify a design for iolite that would show off the gem's pleochroism and that would work for the material's lower refractive index and minimal dispersion. Jeffrey Hill's “Mosaic” is a straightforward design where rough can be oriented to showcase the greys and blues or oriented to show a mixing of the colors.

2 mins

DUNCAN POPPY JASPER

Every year comes the chance to find something new, whether in the field or the marketplace. This year, a new type of jasper appeared in the rockhound community on Facebook, catching quick attention for its bright variety of colored poppy jasper.

2 mins

SPACE ROCKS

Exploring the Asteroid Belt's Ancient Rocks

5 mins

Blue Opal

An Exotic & Common Gem Material

6 mins

SALAR DE UYUNI

While relatively few people have ever visited the immense salt flat known as Salar de Uyuni (sa-LAR day ooh-yooni), millions have seen it on the big screen. In the 2017 movie Star Wars: The Last Jedi, Salar de Uyuni was the filming location for the fictional Crait, a small planet where white salt covers bright-red, mineral-rich soil, and the Resistance fought the First Order in a climactic battle.

3 mins

सभी कहानियाँ पढ़ें Rock&Gem Magazine

Rock&Gem Magazine Description:

प्रकाशक: EG-Media-Investments-LLC

वर्ग: Hobbies_Craft

भाषा: English

आवृत्ति: Monthly

Rock & Gem has been the leading magazine for the lapidary and mineral hobbyist. Not a trade journal and not a scientific dissertation, it speaks to the average rock hound, providing just the right blend of entertainment and satisfying information. Armchair hobbyists and diehard diggers alike will find something to enjoy in each issue.

Lifetime hobbyist and Carnegie Award winner Bob Jones heads up a group of experienced and knowledgeable contributors. Bob’s light - hearted style brings readability to in-depth articles on minerals, classic deposits, and collecting trends. His Frugal Collector series helps collectors learn to identify mineral bargains, and his affiliation with the Tucson Gem & Mineral Society provides a behind-the-scenes look at the year’s biggest and best mineral show and sneak previews of the show’s theme and featured exhibits.