Ekanite
Ekanite is a silicate mineral with a chemical composition typically expressed as Ca2ThSi8O20Ca2ThSi8O20. It is often found as a tetragonal crystal system but is usually metamict due to the...
View ArticleSard
Sard is a semi-precious gemstone known for its deep, rich red color, which ranges from reddish-brown to nearly black. It’s a variety of chalcedony, a type of microcrystalline quartz. This means it’s...
View ArticleThulite
Thulite is a variety of the mineral zoisite known for its striking pink color. The pink hue is primarily due to manganese ions replacing calcium in the mineral’s structure. In terms of composition,...
View ArticlePhenakite
Phenakite is a rare and valuable gemstone known for its exceptional clarity and brilliance. It belongs to the beryllium aluminum silicate mineral group and is composed of beryllium, aluminum, and...
View ArticleDumortierite
Dumortierite is a mineral renowned for its striking blue to violet-blue coloration and its significant presence in various geological formations worldwide. Named after the French paleontologist Eugène...
View ArticleProustite (Ruby Silver)
Proustite is a sulfosalt mineral composed of silver, arsenic, and sulfur, with the chemical formula Ag₃AsS₃. Known for its striking deep red color and transparency, proustite often forms prismatic or...
View ArticlePsilomelane
Psilomelane is a barium manganese oxide mineral, typically presenting as black or dark gray with a submetallic to dull luster. It often forms botryoidal or stalactitic masses, making it visually...
View ArticlePyromorphite
Pyromorphite 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...
View ArticleBastnäsite
Bastnäsite is a group of rare earth fluorocarbonate minerals that includes bastnäsite-(Ce), bastnäsite-(La), and bastnäsite-(Y), with each type named after the dominant rare earth element it contains...
View ArticleGahnite
Gahnite is a mineral belonging to the spinel group, specifically a zinc aluminum oxide with the chemical formula ZnAl2O4ZnAl_2O_4ZnAl2O4. It is typically found in metamorphic and pegmatitic rocks and...
View ArticleCrocoite
Crocoite is a rare mineral classified as a lead chromate (PbCrO₄). It is well-known for its vibrant orange-red color and distinctive crystal formations, which often occur as prismatic crystals or...
View ArticleGibbsite
Gibbsite is a naturally occurring mineral form of aluminum hydroxide with the chemical formula Al(OH)₃. It belongs to the hydroxides and oxides mineral class and is one of the three main components of...
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