Pearl – Harry & Co Jewellery

General Information about Pearl

Pearl is a carbonate mineral composed of calcium carbonate (CaCO).
It belongs to the orthorhombic crystal system.
Pearls come in various colors such as white, pink, silver, cream, brown, green, blue, black, yellow, orange, red, gold, purple, and iridescent.
They have an uneven fracture and a hardness of 2.5-4.5 on the Mohs scale.
The specific gravity of pearls ranges from 2.60 to 2.85.

Pearls do not have cleavage.
The streak of pearls is white.
Common pearls have a refractive index of 1.52-1.66, while black pearls have a refractive index of 1.53-1.69.
Pearls have a birefringence value of 0.156.
The luster of pearls is nacreous and iridescent.

Wild pearls, which occur spontaneously in nature, are extremely rare and valuable.
Cultured pearls, farmed from pearl oysters and freshwater mussels, are the majority of pearls sold today.
Imitation pearls are widely available in inexpensive jewelry.
Pearls have been historically used in jewelry and to adorn clothing.
They have also been crushed and used in cosmetics, medicines, and paint formulations.

Wild pearls are harvested from natural sources.
Cultured pearls are cultivated through farming techniques.
Pearl oysters and freshwater mussels are the primary sources of cultured pearls.
The majority of pearls sold in the market are cultured pearls.
The process of pearl cultivation has been developed and refined over time.

Pearls have become a metaphor for something rare, fine, admirable, and valuable.
They are often associated with beauty, elegance, and luxury.
Pearls are frequently used as symbols of purity and innocence.
In various cultures, pearls hold symbolic and spiritual significance.
They are considered timeless and classic jewelry pieces.

Reference	URL
Glossary	https://harryandcojewellery.com.au/blogs/glossary/pearl
Wikipedia	http://en.wikipedia.org/wiki/Pearl
Wikidata	https://www.wikidata.org/wiki/Q43436
Knowledge Graph	https://www.google.com/search?kgmid=/m/05_8m