Difference Between Salt Water & Freshwater Pearls
1. Salt pearl is generally round in shape, freshwater pearl is oblate, or semicircular in shape.
2. The shine of salt pearl is more brilliant than freshwater pearl.
Identification between salt pearl, Imitation pearl and dye pearl
A - When two pearls scrape each other, it has soapy çš„feeling on imitation pearl and uncouthly feeling on real pearl;
B - Use pearl to scrape the glass, we could see that there has no abrasion marks on imitation pearl but there has on the real pearl.
C - Dye pearl is usually weak color. If you wipe it with a cloth with 5% dilute nitric acid, you could see some black spots contaminated on the cloth.
