A unique rock formation stands out against a textured cliff face. The natural erosion has created intriguing shapes and patterns. ©Debra Martz, All Rights Reserved

One of the most unusual landmarks in Theodore Roosevelt National Park's North Unit is the area called the Cannonball Concretions. @DebraMartz

debra-martz.pixels.com/featured/con...

#concretion #unique #shapes #rockhard #fascinating #photography #erosion #geology #giftideas #wallart #homedecor

Not only do we love vintage, we also think rocks rock!

#Sedona #Sandstone #Concretion #RedRocks in #Vintage #GlassBottle: #CentralArizona #Energy #Revitalization #Stones

etsy.me/4pc6tXs via #Etsy

#estyseller #rockhound #healingstones

Picture of a rock sample.

Detail of rock sample, 10x enlarged

⛏ #RockyMonday ⚒

A few rocky impressions to start the new week!

🔎 Cave sediment / concretion

📏 Width: 8 cm or 3.15 inches

📷 Rock sample from
📍Sardinia, 🇮🇹 Italy

#Geology #geoscience #sediment #concretion #RockArt #rock #soil #carst #carbonate #Sardinia #Italy

#photography #rockintuesday #geology #concretion #bastendorffbeach #oregoncoast

The asteroid.

A concretion that is still weathering out of the host rock on the southern Oregon coast. Slightly bigger than a washing machine. #RockinTuesday #photography #oregon #concretion

A Concretion found on a beach in Washington state

#rockhound #concretion #beachrocks

Four clay concretions, naturally shaped stones with rounded ends and ridges resembling fingers or small sculptures, arranged on a flat surface. The stones have an organic, weathered appearance, and the lighting casts soft shadows, emphasizing their texture.

approx. 13,000 year old clay concretions, found in central Vermont, on the Onion River...

#februarty #ring #clayconcretion #concretion #rockhound #rock #photography #vermont #macrophotography #macro

#concretion is a hard, compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil.[1] Concretions are often ovoid or spherical in shape, although irregular

#concretion is a hard, compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil.[1] Concretions are often ovoid or spherical in shape, although irregular

Hate to spoil it … but this intriguing find does not have the potential to profoundly influence contemporary perspectives regarding prehistoric cultures in Europe - as it's a natural iron #concretion.

It's not even news, I'm afraid:...