Zircon
Crystal EncyclopediaZircon, scientifically known as zirconium silicate (ZrSiO4), is a mineral prized for its versatility and wide-ranging applications. With its remarkable resistance to heat, corrosion, and chemical alteration, zircon finds use in diverse industries. Gem-quality…
Lazurite
Crystal Encyclopedia Lazurite, pyrite, calcite
Lazurite is a member of sodalite group in feldspathoid mineral also it is tectosilicate with formula is (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)]. A sodium calcium aluminosilicate, lazurite is the main component of the gemstone…
Glaucophane
Crystal Encyclopedia
The Glaucophane mineral is named after two Greek words: glaukos, which means “bluish green”; and phainesthai, which means “to appear.” Specimens can be gray, lavender blue, or bluish black. Crystals are slender, often lathlike…
Nepheline
Crystal Encyclopedia Nepheline – USGS Mineral Specimens
Nepheline is the most common feldspathoid mineral in the world, its name from the Greek word nephele, which means “cloud” a reference to the fact that the mineral becomes cloudy or milky in strong acids. Specimens…
Aquamarine
Crystal EncyclopediaAquamarine is a beautiful gemstone and a variety of the mineral beryl. It is highly prized for its stunning blue to greenish-blue color, reminiscent of the clear waters of the sea, which gives it its name “aquamarine” (aqua meaning water and marine…
Natrolite
Crystal Encyclopedia Haineaultite-Analcime-Natrolite
Bombay Quarry, Mumbai District (Bombay District), Maharashtra, India
Natrolite is a tectosilicate mineral belong to zeolite group members.Its formula Na2Al2Si3O10 • 2H2O. A hydrated sodium aluminosilicate,…
Pyromorphite
Crystal EncyclopediaPyromorphite is a secondary lead mineral that forms in the oxidation zones of lead ore deposits. It is classified as a member of the apatite group of phosphates and has the chemical formula Pb5_55(PO4_44)3_33Cl. The mineral is primarily composed…
Aragonite
Crystal Encyclopedia Aragonite crystals. Aragonite is a variant of calcium carbonate, along with the mineral calcite. This sample, found in Morocco, is 4 centimetres long.
crystals of Aragonite mineral stone isolated on white background
Aragonite is a carbonate…
Cacoxenite
Crystal EncyclopediaCacoxenite is a mineral that is primarily composed of iron, aluminum, phosphate, and hydroxide ions. It is a relatively rare mineral and is often found as an accessory mineral in various types of rocks, particularly in association with iron ores and phosphates.…
Ilmenite
Crystal Encyclopedia Ilmenite an outstanding tabular group of large parallel-growth crystals
Ilmenite-magnetite by James St. John (Flickr.com)
Ilmenite, otherwise called manaccanite, is a titanium-iron oxide mineral with formula: FeTiO3. It is a noteworthy wellspring…
Goethite
Crystal EncyclopediaGoethite is a common iron oxide mineral that has a chemical formula of FeO(OH). It is often referred to as “limonite” although that term is used more broadly to describe a mixture of various iron oxides and hydroxides. Goethite is an important mineral…
Borax
Crystal EncyclopediaBorax, also known as sodium borate or sodium tetraborate, is a naturally occurring mineral that has been used for various purposes throughout history. It is composed of boron, sodium, oxygen, and water molecules. The chemical formula for borax is Na2B4O7·10H2O.…