Gå ubegrenset med Magzter GOLD

Gå ubegrenset med Magzter GOLD

Få ubegrenset tilgang til over 9000 magasiner, aviser og premiumhistorier for bare

$149.99
 
$74.99/År

Prøve GULL - Gratis

"Lucky 13"-A New Find of Purple Apatite at Maine's Pulsifer Quarry

Rock&Gem Magazine

|

April 2023

A patite is a favorite collector's mineral with a dizzying array of beautiful colors and interesting crystal habits.

- BOB FARRAR

"Lucky 13"-A New Find of Purple Apatite at Maine's Pulsifer Quarry

Perhaps the most famous apatite locality in North America, and indeed the world, is the Pulsifer Quarry in Maine. For almost a century, the Pulsifer Quarry was the source of some of the finest purple apatite specimens and gemstones ever found. However, no apatite was found there for decades following finds in 1996. Many assumed that the Pulsifer Quarry was extinct. But in the summer and fall of 2022, renewed activity at the quarry resulted in a new find of beautiful purple apatite specimens, with the promise of more to come.

ABOUT APATITE

Apatite is not one mineral species. It is a group of calcium phosphates with either fluorine, chlorine, or hydroxyl groups, respectively known as fluorapatite, chlorapatite, and hydroxylapatite. Fluorapatite is the most common species and includes the material from the Pulsifer Quarry. It is also the one most people are referring to when they say "apatite."

Apatite occurs in a variety of geological environments but can be well developed in granitic pegmatites. It may be colorless, white, brown, green, yellow, blue or purple. In apatite, the purple color is caused by manganese. Purple apatite is found in a number of localities around the world, including several in Maine. "Royal purple" refers to a rich hue of purple. Royal purple apatite only occurs in a few localities and the Pulsifer Quarry is widely considered the best.

PULSIFER QUARRY 

FLERE HISTORIER FRA Rock&Gem Magazine

Rock&Gem Magazine

Rock&Gem Magazine

The Black Prince's Ruby and Other Cursed Gems

Submitted for your consideration: A collection of gems whose acquisition has often been synonymous with terrible loss but whose sparkle still holds fatal attraction. Meet some of the most cursed and feared - gems in history.

time to read

7 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

The Minerals of Transylvania

Whether you're in it for science, beauty, spooky stories, or all of it, Transylvania's minerals offer a little something for every rockhound. Deep in the heart of Romania, the Carpathian Mountains are known for gothic lore and vampire legends. In this land of Dracula, Transylvania's rugged geology, shaped by volcanic activity, has made it one of Europe's most mineral-rich areas.

time to read

2 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Is Earth's Magnetic Field Linked to Atmospheric Oxygen?

The scientists making the observation were surprised. A time series analysis of geological records over the past 540 million years of Earth history seems to show a highly correlated link between oxygen levels in the Earth's atmosphere and the strength of the planet's magnetic field, and both seem to be slowly increasing in sync.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

The Best Archaeopteryx Yet

Archaeopteryx has been an icon in the world of paleontology ever since the first one was uncovered in 1861.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Ancient Proteins Survive Much Longer than Expected and offer new insights into rhino evolution

In paleontology, the old days of pick-and-shovel and drawing evolutionary relationships based on anatomy alone may not be long gone, but they’re certainly being overshadowed by advances in the lab.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

PENNSYLVANIA'S FOSSIL FOREST

Some 300 million years ago, near the town of St. Clair, Pennsylvania, the land was covered by lush green forests with a wide variety of plants and trees.

time to read

3 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

From Waste to Rock in No Time Flat!

Ever wonder how long it takes for rock to form? It could be as little as minutes when molten lava hits ice-cold water beneath the sea to instantly form igneous basalt.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Maribel CAVES & HOTEL...

Haunted Ruins With 'New Hope' For Caves

time to read

7 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

THE GEOLOGY OF GRAVESTONES

Along with black cats, witches and jack-o'-lanterns, cemeteries are iconic symbols of Halloween—and for good reason. Shrouded in mystery, superstition and folklore, they can elicit feelings of foreboding and fear.

time to read

4 mins

October 2025

Rock&Gem Magazine

Is Subduction “Infectious?”

Earth’s surface is composed of huge plates of relatively stable continental crust and oceanic crust that are constantly forming and recycling. Where they meet, subduction frequently occurs, with ocean crust plunging beneath continents. Thus oceans open and close, appear and disappear.

time to read

1 min

October 2025

Translate

Share

-
+

Change font size