High-Sulphidation Deposits of Gold
High-sulphidation deposits result from fluids (dominantly gases such as SO2, HF, HCl) channeled directly from a hot …
High-sulphidation deposits result from fluids (dominantly gases such as SO2, HF, HCl) channeled directly from a hot …
Epithermal systems are fascinating geological areas where hot, acidic hydrothermal fluids circulate near the Earth's su…
Green balls of conichalcite with erythrite, brown olivenite. Photo & Collection IOB Sylvano Green balls of conichalc…
Rocks Vs. Minerals Rocks and minerals are both naturally occurring solid substances that are found in the Earth's crus…
Fire Agate , a variety of chalcedony, is a semi-precious natural gemstone found only in certain areas of northern Mexico an…
Petrophysics Is the study of physical and chemical rock properties and their interactions with fluids.A major applicat…
Amazing Rosette Linarite from Modrá štola, Zlaté Hory (Zuckmantel), Olomouc Region, Moravia (Mähren; Maehren), Czech Republ…
Normal Faults in Road Cut Near Shoshone - California Normal, or Dip-slip, faults are inclined fractures where the blocks h…
What is Hydraulic Fracturing? Hydraulic fracturing is a procedure that can increase the flow of oil or gas from a well.…
East African Rift Valley: A Complex Rift System The East African Rift (EAR) or East African Rift System (EARS) is a mass…
Gemmy crystals of Native Sulfur atop Aragonite with Aragonite ps after Calcite! This is an impressive Sulfur specimen th…
Clinoclase Crystals. Collection & Photo Matteo Chinellato A group of green dark Spangolite crystals and blue Conne…
Caño Cristales is a Colombian river located in the Serrania de la Macarena province of Meta. The river is commonly called …
Unique Annabergite Crystals. Photo Credit: © Jean-Marc Johannet Annabergite Annabergite is an arsenate miner…
Pamukkale's terraces natural site in Denizli Province in southwestern Turkey are made of travertine, a sedimentary roc…
Photo Copyright © Christian Rewitzer Carminite | #Geology Formula: PbFe 3+ 2 (AsO 4 ) 2 (OH) 2 System: Orthorhombic…
We could exploit energy from deep down in the earth, as a report from a geothermal borehole suggests. The project develope…
Clinoclase is a rare secondary copper mineral and forms acicular crystals in the fractured weathered zone above copper sulf…
A new theory based on a simple but viable geologic model claims that over 80 percent of all commercial gold deposits …
Formed from hydrothermal fluids in a shear zone interacting with the rock they passed through, the fossil in the host b…