Prøve GULL - Gratis
RHODONITE
Rock&Gem Magazine
|April 2020
Diverse Formations From Varied Deposits Lead To Global Appeal

Deep in the Central Ural Mountains of Russia are two deposits of rhodonite where solid pink to red lapidary material has been quarried since the 1790s. According to legend, before the modern discovery, the local natives noticed eagles picking up small pieces of red stone to put in their nests. The locals assumed this was for good luck, and so adopted the practice. They called the pink stone orletz, eagle stone, which is now hessonite.
Contrasting the rich red color in much of the Russian rhodonite are pleasing spidery veins and batches of black manganese oxide. They may have invaded the stone’s cracks and openings or are leftover molecules in the solution as this calcium manganese silicate rhodonite was forming.
The contrast of the pink to red silicate and black oxide adds a note of beauty to carvings and can challenge a good artist to incorporate the spiny veins into a design.
RUSSIA’S FONDNESS FOR RHODONITE
The Russians so highly prized rhodonite it sometimes rivaled malachite, especially for large carvings. Malachite, though found in multi-ton masses was always vuggy, and had to be sliced into smaller pieces requiring matching of its bands to achieve larger areas and patterns, such as a mosaic, to give it a solid appearance. Rhodonite, on the other hand, could be quarried in huge solid masses and large solid blocks, not unlike quarrying marble. These could be shaped and chiseled into all sorts of large solid red objects.
Denne historien er fra April 2020-utgaven av Rock&Gem Magazine.
Abonner på Magzter GOLD for å få tilgang til tusenvis av kuraterte premiumhistorier og over 9000 magasiner og aviser.
Allerede abonnent? Logg på
FLERE HISTORIER FRA 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.
7 mins
October 2025

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.
2 mins
October 2025

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.
1 min
October 2025

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.
1 min
October 2025

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.
1 min
October 2025

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.
3 mins
October 2025

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.
1 min
October 2025

Rock&Gem Magazine
Maribel CAVES & HOTEL...
Haunted Ruins With 'New Hope' For Caves
7 mins
October 2025

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.
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.
1 min
October 2025
Translate
Change font size