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The mystery of Minerals, brought to you by {name}

Antonio Rapisarda

Wonderful collection of Natural Ethiopian Rough Opals from 16 to 25 mm approx.
All pictures are taken with high resolution camera on bone dry material 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. Only 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.


Hello, Ethiopia

30.0 carats Ethiopian Opals Rough- 6 g - (4)

Minerals & Meteorites

Reserve price

No reserve price

Buy now

Closing date

tomorrow

8 March

Thursday

7 March

Tuesday

Friday

Monday

Wednesday

14 March

Budget

From

Location

Italy

Germany

The Netherlands

France

Spain

Lithuania

United Kingdom

Portugal

Poland

Ireland

Türkiye

India

Belgium

Latvia

Czech Republic

Romania

Switzerland

Greece

Taiwan

Austria

Sweden

Singapore

Estonia

Bulgaria

Denmark

Dimensions

Height

Width

Depth

Object

Raw mineral

Metaphysical stones

Carved mineral

Amber

Meteorite

Necklace

Mineral cabochon

Bracelet

Nugget

Ring

Earrings

Pendant

Chain

Bangle

Collar necklace

2 piece jewellery set

Necklace with pendant

Drop earrings

Muonionalusta meteorite

Sea shell

Tektite meteorite

Gemstone cabochon

Bead

Faceted gemstone

String of beads

Country of origin

Brazil

Madagascar

Ethiopia

Afghanistan

Australia

Pakistan

China

Uruguay

Tanzania

Morocco

South Africa

Mexico

Peru

Russia

Congo

DR Congo

Indonesia

United States

Namibia

Material

Silver

Stone

Lapis Lazuli

Rock crystal

Gold-plated

Steel

Yellow gold

Brass

Agate

.925 silver

Shell

Malachite

Gender

Unisex

Women

Condition

As new - unused

Natural

Excellent condition - barely used with minimal signs of wear

Enhanced

Composed

Good condition

Good condition - used with some signs of wear

Excellent condition

Very good condition - slightly used with small signs of wear

Excellent condition: barely used with minimal signs of wear

Good condition - used with small signs of aging & blemishes

Cast

Restored

Reasonable

Period

Paleogene, Eocene (56 - 33.9 million years)

2020+

Paleogene, Oligocene (33.9 - 23.03 million years)

Cretaceous, Lower (145 - 100.5 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Silurian (443.8 - 419.2 million years)

2010-2020

2023

2026

1970-1980

1980-1990

1990-2000

Jurassic (201.3 - 145 million years)

Mesozoic (251.9 - 66 million years)

2020

2025

21st century

1850-1900

Coral

Turquoise

Pearl

Amethyst

Lapis lazuli

Opal

Mixed gemstones

Quartz

Blood Coral

Aquamarine

Natural Pearl

Freshwater cultured pearl

Ruby

Jade

Chalcedony

Emerald

Citrine

Onyx

Carnelian

South Sea cultured pearl

Akoya cultured pearl

Moonstone

Topaz

Tourmaline

Certification

No laboratory report

Antwerp Laboratory for Gemstone Testing (ALGT)

GEM-TECH Istituto Gemmologico

Gem Report Antwerp (GRA)

Anchor Cert

Style

Vintage

Art Deco

Contemporary

Modern

Signature

Not signed

Colour

Green

Minerals & Meteorites

This object is no longer available, but there’s still lots to explore

30.0 carats Ethiopian Opals Rough- 6 g - (4)

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