ROCK SALT TEA LIGHT HOLDER SET OF 2 The tranquil, therapeutic, radiant light these rock salt tea light candle holders produce is simply lovely. Heated salt emits negative ions that help purify the air and dilute odors. Due to the natural rock, no two lamps are the same. Size, color and weight may vary. Each is approximately 4" x 4" x 3" high and weighs 2 lbs.