Gemstones are rare minerals, rocks, or organic matter, cut and polished for jewelry.
Crystals have atoms arranged in a lattice, used in tech and metaphysical practices.
Some gemstones are crystals; valuable crystals can be gemstones.
Classified by composition, clarity, hardness, and precision.
Classified as cubic, tetragonal, trigonal, triclinic, hexagonal, monoclinic, orthorhombic.
Features include refractive index, luster, hardness, clarity, and dispersion.
Notable for their physical, electric, and magnetic properties.
Used in jewelry like rings, necklaces, crowns, and royal swords.