Psilomelane
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...
View Article