0 
Pearl, Half Drilled, Drop, 8 x 10 mm
- 8111452
- £6.90 exc.VAT
Most pearls are products of bivalve mollusks mainly of the oyster type. They are built up of mother-of-pearl which is mainly calcium carbonate that binds the microcrystals concentrically around an irritant. The size of pearls varies between a pin head and a pigeon's egg. One of the largest pearls ever found is 2inches long and weighs 454ct (90.8grams), it is in the South Kensington Museum in London.
Shape: Drop
Size: 8x6mm
Weight: 0.86g
Colour: White
Moh's hardness: 2½ - 4½
Density: 2.60-2.85
Cleavage: None
Refractive index: 1.52-1.66
Dispersion: None
