Andersonite specimens will usually glow a bright lemon yellow (or green with blue hints depending on the deposit) in ultraviolet light. It is commonly found as translucent small rhombohedral crystals that have angles close to 90 degrees although its crystal system is nominally trigonal. Its Mohs hardness is 2.5, with an average specific gravity of 2.8.
Andersonite specimens typically exhibit a bright lemon yellow glow (or greenish-blue tint) when exposed to ultraviolet light. It is frequently found in the form of transparent, small rhombohedral crystals with nearly right angles, although its crystal structure is technically trigonal. Its physical properties include a Mohs hardness of 2.5 and an average specific gravity of 2.8.