SHOW: Earrings 02
Title: Earrings.
General: These 18K Gold earrings are set with cultured Pearls, and
encompass the ear. The pearl on the earlobe locks them in place.
Material: 18K Gold.
Gem: Miki Moto Cultured Pearls.
Method: constructed.
Finish: Polished.
Mechanics: The pearl on the earlobe locks them in place.
Designer: Walraven van Heeckeren.
Craftsman: Walraven van Heeckeren.
Availability: On special order only.
Price: AUS $ 3600.00.
18K GOLD is a ternary Gold alloy consisting of:
750 parts/1000 Pure Gold.
125 parts/1000 Pure Silver.
125 parts/1000 Pure Copper.
Annealing temperature: 750 degrees Celsius.
Melting Temperature: 950 degrees Celsius.
Wal.
name: PEARL colour: Pink, silver, cream, golden, green, blue, black colour of streak: White mohs hardness: 3-4 specific gravity: 2.60-2.78 cleavage: None fracture: Concoidal or scaly crystal system: Microcrystalline chemical composition: 84-92% calcium-carbonate, 4-13% organic substances, transparency: Translucent to opaque refractive index: 1.52-1.66 Black: 1.53-1.69 double refraction: Weak or none dispersion: None pleochroism: None absorption spectrum: Not usable fluorescence: Weak; not usable. Natural black: red-reddish
Miki Moto is a Japanese company, which grows cultured
pearls of very high quality.
Wal.
Cultured Pearls are created by artificially inserting
a small sphere made from pearlite (the pearly
coating on the inside of a shell), into the Oyster
so that it irritates the Oyster. The Oyster then
coats this irritant with more pearlite in order to
protect itself. The smaller the irritant sphere,
the longer it takes for a pearl to grow to any size.
Cheap cultured pearls start with a large sphere,
while expensive cultured pearls start with small
spheres. As an example, Miki Moto cultured Pearls
take three years to grow to about 3 mm in diameter,
and most of this is deposited by the Oyster.
Wal.