Vermiculite
Vermiculite is a naturally occurring mineral that has gained significant attention due to its unique properties and various applications. It is a hydrated, laminar, and micaceous mineral belonging to the […]
Entries by CAI ICIA
Bornite (Peacock)
Bornite, commonly referred to as “peacock ore,” is a captivating mineral known for its striking and iridescent appearance. This mineral, composed primarily of copper iron sulfide (Cu5FeS4), draws its nickname […]
Nosean
Nosean, otherwise called Noselite, is a mineral of the feldspathoid type in tectosilicate with formula: Na8Al6Si6O24 (SO4). H2O. It frames isometric precious stones of variable shading: white, dim, blue, green, […]
Talc
Talc is a naturally occurring mineral known for its softness, smoothness, and ability to absorb moisture. It is a silicate mineral that is composed of magnesium, silicon, and oxygen. Talc […]
Rosasite
Rosasite is a secondary mineral that typically forms in oxidized zones of copper-zinc ore deposits. It is chemically composed of copper zinc carbonate hydroxide, with the formula CuZnCO3(OH)2CuZnCO3(OH)2. This mineral […]
Cuprite
Cuprite is a mineral that belongs to the oxide mineral group. It is composed of copper(I) oxide, with the chemical formula Cu2O. The name “cuprite” is derived from the Latin […]
Rhodochrosite
Rhodochrosite is a carbonate mineral with formula: MnCO3. It has a classic rose-pink color, but specimens can also be brown or gray. It forms dogtooth or rhombohedral crystals like calcite, […]
Uraninite
Uraninite is a mineral that is primarily composed of uranium oxide. It is a significant ore of uranium, which is an important element used for nuclear power generation and in […]
Staurolite
Staurolite is a mineral that is known for its unique crystal shape and its association with metamorphic rocks. The name “staurolite” comes from the Greek words “stauros” meaning “cross” and […]
Chalcanthite
Chalcanthite is a mineral with the chemical formula CuSO₄·5H₂O. It belongs to the sulfate mineral group and is a hydrated copper sulfate. The name “chalcanthite” is derived from the Greek […]
Gibbsite
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 […]
Silver Sheen Obsidian
Silver Sheen Obsidian is a type of volcanic glass that exhibits a silver or silvery-blue sheen or chatoyancy when light reflects off its surface. This unique appearance is caused by […]