Amber-coloured rock salt found in underground mines in the Himalayas. When lit it give out a warm, reddish-pink glow and the heat from the lightbulb/candle triggers a hygroscopic effect, attracting moisture from the environment.
It is thought that the salt, when warmed, releases negative ions which help eliminate dust particles and purify the surrounding air. The lamps are also believed to have a healing effect, boost your overall mood and help you sleep more soundly.
Himalayan salt is hygroscopic in nature and it is the moisture absorbed from the environment that causes the salt lamps to leak. This will only usually happen in damp/cold environments and not commonly inside a warm house. If leakage does occur it is best to stand the lamp on a mat and wipe it down regularly.
