June 2014

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…

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 …

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…

Red Tourmaline

Red tourmaline specimen found in Yen Bai Province - North Vietnam

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…

Smoky Quartz

Smoky Quartz Tectosilicates SiO2 North Carolina, USA & Ontario, Canada Size: 20 cm

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 …