The Velodrome Recumbent Fold - France
The Velodrome Recumbent Fold - France The Velodrome is a large recumbent fold spilled southward, formed at the end of th…
June 2014
The Hot spring
A hot spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. …
Pelagic Sediment
Pelagic sediment or pelagite is a fine-grained sediment that accumulates as the result of the settling of particles to th…
Splendid Spessartine crystals
Spessartine. Formula:Mn32+Al2(SiO4)3 System:Isometric Colour:Red, reddish orange, ... Lustre:Vitreous Hardness:6½ - 7½…
Banded Iron Formations BIF
Jaspilite banded iron formation (Soudan Iron-Formation, Soudan, Minnesota, USA Image Credits: James St. John Banded …
Amazing Emerald Crystal on Crystals
The same amazing Emerald specimen but this time photographed with a real camera and not a phone camera. Note the differe…
The Triple Frontier where the Borders of 3 Countries Meet.
The Triple Frontier is the tri-border region where the borders of 3 countries meet: Argentina, Paraguay and Brazil. Whi…
California Syncline
Fitzgerald Marine Preserve, San Mateo County, CA A syncline is a fold with younger layers closer to the center of the …
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Fulgurites: When Lightning Strikes Sand, Magic is Formed
Fulgurites (from the Latin fulgur meaning thunderbolt) are a variety of the mineraloid lechatelierite. They are natural…
Tectonic Settings of Metal Deposits
Tectonic Settings of Metal Deposits. From Skinner and Porter, 1987 Ore Deposits and Plate Tectonics P late tecto…
Stratigraphic Cross Section Interpretation Exercise
Determining a Sequence of Geologic Events: Law of Original Horizontality: Sedimentary rock layers were originally deposi…
The Difference between Rocks and Minerals .
mineral —A naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characte…
Fabulous Mexican Azurite
Azurite |#Geology Formula: Cu3(CO3)2(OH)2 System:Monoclinic Colour:Azure blue, blue, light ... Lustre:Vitreous Hardnes…
Lena's Stone Forest in Russia
Lena's Stone Forest in Russia Lena's Pillars, also called Lena’s Stone Forest, is a natural rock formation about…
Preachers Rock - Norway
Preikestolen is a mountain formed like a huge pulpit towering over the Lysefjord in Rogaland, Fjord Norway. There is a c…
Elephant Rock
This rock is a fine example of an arch in the shape of an elephant. The rock is right next to the road, but as parking …
Amazing Folding Rocks
Agios Pavlos, Greece Agios Pavlos, Greece These sedimentary limestone layers were once layered horizontal at t…
West Salt Creek Landslide
Image of the recent West Salt Creek Landslide that occurred on May 25th at 5:44 PM local time near Collbran, Colorad…
Opal
Opal, Queensland, Australia Opal is hydrous silica ( SiO₂·nH₂O ). Technically, opal is not a mineral because it lack…
Hematite Aggregate
Hematite Aggregate Fe2O3 Botryoidal Habit A globular aggregate resembling a bunch of grapes with each round mass consis…
Natural Green Obsidian
Green Obsidian – Volcanic glass Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. …
Spectacular Neon Blue Lava Pours From Indonesia's Kawah Ijen Volcano At Night (PHOTOS)
Spectacular Neon Blue Lava Pours From Indonesia's Kawah Ijen Volcano At Night You've heard of "red hot…
Slab of Tiger Iron
Tiger Iron, a combination of Golden Brown Tiger Eye, Hematite, and Red Jasper, exhibits the metaphysical properties of …
Superbe Opal Cabochon
Opal and Opal Cabochon Formula: SiO2 · nH2O Colour:Colorless, white, various Hardness:5½ - 6½ From: Queensland, Aust…
The Pink Lake - West Australia
Lake Hillier is a pink-colored lake on Middle Island, the largest of the islands and islets that make up the Recherche …
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