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$2,200.00 USD
Procijenjeni RRP $4,499.98
7733
24

4280.00 CTS POLISHED OPAL SPECIMEN FROM LIGHTNING RIDGE [LRO919]

SKU
Dimenzije (mm)
146.000 x 105.000 x 46.700mm
Težina (cts)
4280.000
Body Tone
N3
Tip
Specimen
Boje

This is a natural opal specimen from Lightning ridge Australia.it show some amazing formations in the potch area
Size and weight are approximate.
The colour area has been well polished.
Read this interesting article on this specimen done by Dr Simon pecover (BA Earth Science, MSc & PhD)* Research Gemmologist and Geoscientist .

What an amazing opal-layered-folded structure is displayed by this specimen.

Lately I have been doing more research on these types of structures in
Australian opal, as they closely resemble "Kelvin-Helmholtz" instability
billows and folds, which can be formed in highly viscous fluids subjected to
shear instability conditions; especially when such conditions are imposed on
density stratified viscous non-Newtonian fluids subjected to seismic shaking
(something that would be expected to have occurred in a
tectonically-generated fault-controlled opal-vein-forming environment).

Such structures are known to form in layered fluids displaying density
gradients, particularly where less dense fluid layers sit on top of denser
fluid layers. When these layers are subjected to shear flow, instability
arises because of the density contrasts; with orientation preserved through
continuous folding, thereby defining the direction of turbulent flow.

Importantly, understanding the shear-strain environment of GAB opal deposit
formation provides important exploration clues as to where opal deposits may
have been concentrated in the host sedimentary rocks of this extraordinarily
unique gem-opal-rich geological basin.

it is a important piece which demonstrates the vigorous shear-dominated
hydrodynamic and rheological environment under which the opal vein deposits
of Lightning Ridge were likely formed.


Pružatelj usluge dostave Dostava u Australia Dostava u ostatak svijeta
FedEx $12.00 / :dani dani $39.00 / :dani dani
:zemlja
FedEx je snižen na $12.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $39.00 na narudžbe s 2 ili više artikala
Registered Shipping $9.00 / :dani dani $16.00 / :dani dani
:zemlja
Registered Shipping je snižen na $9.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $16.00 na narudžbe s 2 ili više artikala

sedaopals
Discover the magic of opals at SedaOpals, where every stone tells a unique story. Paul Sedawie, the heart and soul of SedaOpals, began his journey with a humble piece of boulder rough at 14, sparking a lifelong passion for these mesmerizing gemstones. With over 40 years in the opal industry, Paul’s dedication has taken him from the rugged landscapes of Lightning Ridge to prestigious gem shows around the world. Paul, a former president of the Opal Association and an author of several opal books, shares his vast knowledge and passion with enthusiasts globally. He’s even made the largest donation of opalized fossils and curiosities to the Australian Opal Centre at Lightning Ridge. At SedaOpals, Paul and his sons offer a meticulously curated collection of opals, each handpicked for its exceptional beauty and character. Whether you’re a seasoned collector or new to the world of opals, you’ll find a stunning array of black opals, boulder opals, and crystal opals to explore. Join us in celebrating the timeless beauty and craftsmanship of opals. Welcome to SedaOpals, where every opal is a piece of art.
:Grad drzava
Provjereno
:ukupne povratne informacije

  • laurenlambert
    laurenlambert
    Pozitivan

    The stone was more beautiful in person than in the photos. It arrived very quickly. I would definitely recommend this seller and would buy from him again.

  • fissure
    fissure
    Pozitivan

    Always a pleasure to deal with you! Thanks for fast shipping :)

  • gbesch
    gbesch
    Pozitivan

    Absolutely stunning multi-colored fire skitters across the surface as if the stone were alive. One of the most beautiful pieces of boulder opal I've ever purchased. Extremely pleased! Thanks!!!

5%
Kod kupona SEDADEALS
Vrijedi do
7th Nov 2024

Revizija

Ovaj proizvod je revidirao Opal Sheriff i otkrio sljedeće:
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  • Slike Točne

Comments

The Verified Seller has provided accurate and complete information for this Opal including weight, dimensions and if any treatment

Ova revizija je zatražena :datum
Zadnje ažuriranje: datum

Detalji dostave

dostava:
$16.00 21 days putem Registered Shipping
Brodovi iz:
Australia

Načini plačanja

  • paypal
  • stripe
  • gempay
Ovaj prodavač dodaje 10.00% porez na transakcije u Australia.

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 824941
Počinje : 23rd October 2024 09:24 pm PDT
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