Top Results for Crystals

Band theory in physics describes how electrons behave within crystalline materials. It explains that electrons occupy energy levels arranged into “bands,” separated by regions where they cannot exist. The width of these bands and the gaps between them determine a material’s electrical properties – w...

Bloch’s theorem describes how electrons behave within crystalline structures. It demonstrates that electrons in periodic potentials, like those found in solids, maintain their wave-like properties but are characterized by momentum related to the crystal lattice. This allows for a precise description...

Vicki Sarge is a British jewelry designer and a co-founder of Erickson Beamon, the fashion-jewelry company established with Karen Erickson and Eric Beamon. She later developed work under her own name, producing large-scale earrings, necklaces, cuffs, and other statement pieces. Her designs commonly...

Dioptase is a copper cyclosilicate mineral known for transparent to translucent crystals in vivid green shades. It commonly forms small, sharply defined crystals and has a bright vitreous luster, but it is relatively soft and brittle compared with many durable jewelry gemstones. Dioptase occurs in t...

Cavansite is a blue calcium vanadium silicate mineral valued by mineral collectors for its intense color and well-formed crystal groups. It commonly appears as radiating or botryoidal aggregates and is softer and more fragile than many traditional jewelry minerals. Important specimens have been foun...

Celestite is a mineral composed of strontium sulfate and is named for its pale sky-blue color, although it can also occur in white or other shades. It forms crystals and geodes that are collected as mineral specimens and, when transparent and attractive, may be cut or displayed as a gemstone. Import...