![](https://assets.catawiki.com/image/cw_lot_card/plain/assets/catawiki/assets/2024/5/8/0/7/3/073a9e3b-5aba-4b87-8466-70d1ed7803fe.jpg)
Ct. Opale etiopskie 50,0 Kaboszon- 10 g
Nr 83557559
Nr 83557559
Natural Ethiopian Cab Opals
Clarity: from translucent to opaque;
Pictures taken with high resolution camera on different backgrounds in order to depict the opals as realistically as possible.
Worldwide shipping with registered mail and tracking number.
An opal is a hydrated form of silica with a water content ranging from 3 to 21%.Indeed, it is this permeability to water that makes it a hydrophile.
Opals are deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Precious opals show a variable interplay of internal colors.
At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. These ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal.
Jak kupować w serwisie Catawiki
1. Odkryj coś wyjątkowego
2. Złóż najwyższą ofertę
3. Dokonaj bezpiecznej płatności