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Charoite : What is Charoite Stone? How is Charoite Formed?
What is Charoite Stone? Charoite (K(Ca, Na)2Si4O10(OH, F)·H2O) is a rare mineral silicate, first described in 1978 and named for the River Chara. It was...
Topaz Color : What Color Is Topaz? What causes color in...
Topaz is a silicate aluminum and fluorine mineral with the Al2SiO4(F, OH)2 chemical formula. Topaz crystallizes in the orthorhombic system, and its crystals are...
Fire Agate : What is fire agate? How fire agate is...
Fire Agate The fire agate is a semi-precious natural gemstone which has only been discovered in certain areas of central, northern Mexico (New Mexico, Arizona...
Gachalá Emerald : One of the most valuable and famous emeralds...
The Gachala Emerald was discovered in 1967 in the mine called Vega de San Juan, located in Gachala, a town in Colombia, 142 km...
Types of Agate : What are the different types of agate?
What Is Agate? Agate is a gemstone used in different pieces of decoration and jewelry. It's made of silica and chalcedony. The silica crystals, mostly...
Opals in Oregon : Where to Find Opals in Oregon?
Opals are made out of rhyolite, basalt, sandstone, marl and rhyolite. A common source of opals are rhyolite geodes. The rocks, which means they...
Cantera Opal : What is Cantera Opal ? How Cantera Opal...
What is Cantera Opal ? Cantera opal is a type of Fire opals that do not show play of color are sometimes referred to as...
Obsidian : How to Identify Obsidian?
Obsidian is a natural volcanic glass that is formed as an igneous rock that is extrusive. Obsidian is formed by rapidly cooling felsic lava extruded...
Opalized "Petrified" Wood
What is Opalized Wood "Wood opal"? Wood opal is a form of petrified wood which has developed an opalescent sheen or, more rarely, where the...
What are the Different Types and Colors of Moonstone? [With Pictures]
What is Moonstone? Moonstone is a sodium potassium aluminium silicate ((Na,K)AlSi3O8) of the feldspar group that displays a pearly and opalescent schiller. An alternative name...
Moonstone vs Opal : What's the difference between Moonstone and Opal?
Moonstone vs Opal Chemical Composition Opal : (SiO2·nH2O) Moonstone : ((Na,K)AlSi3O8) About Moonstone vs Opal Opal Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content can range...
Fire Opal : What Is Fire Opal? How Is Fire Opal...
Fire Opal Fire opal is a translucent opal with warm body colors ranging from yellow to orange to gold. Even though it usually doesn't show...
Ore Minerals : What are Ore Minerals?
Ore Minerals An ore is a natural occurrence of rock or sediment which contains enough minerals with economically important elements, typically metals, that can be...
Top Spots For Gem Hunting In California
Geology Page - October 24, 2019
Gem Hunting In California California is one of the richest states in mineral diversity. Not unexpectedly, it has a good reputation when it comes to activities...
How rare earth element (REE)-rich deposits formed in central Sweden
Much of our modern technology relies on the use of rare earth elements (REEs), and a key to finding more of them is to...
Prospecting for gold just got a lot easier
Looking for gold? Every good explorer knows there's no silver bullet in finding an ore deposit, but a University of South Australia researcher is...
Geyser Opal "Spencer Opal": What is Geyser Opal? How it Formed?
Geyser Opal "Spencer Opal" Geyserite is a type of opal silica that is often found around hot springs and geysers. It's sometimes referred to as...
Benitoite : The Rarest Gemstone Found in the World only been...
What is Benitoite Mineral? Benitoite is a rare minerals best known to be the official Californian state gemstone. It is a barium titanium silicate mineral,...
Student discovers unusual new mineral inside a diamond
A Ph.D. student at the University of Alberta has discovered a new and curious mineral inside a diamond unearthed from a mine in South...
Where to find Emerald Crystals in the United States?
What is Emerald? Emerald is a gemstone and a range of green-colored mineral beryl (Be3Al2(SiO3)6) by trace quantities of chromium and sometimes vanadium. On Mohs...
GPS Solution Provides Three-Minute Tsunami Alerts
Deep Earth heat surprise
20 Things You Didn't Know About "Inner Earth"
700-year-old West African soil technique could help mitigate climate change
Unique tooth structure allowed predatory dinosaurs to efficiently crunch flesh and...
Risk of earthquake increased for about half of US
Methane May Be Answer to 56-Million-Year Question