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

Antonio Rapisarda


Moss agate can be clear or milky white, with green dendritic inclusions that resemble moss. The colors are formed due to trace amounts of metal present as an impurity, such as chrome or iron. The metals can make different colors depending on their valence (oxidation state). Despite its name, moss agate does not contain organic matter and is usually formed from weathered volcanic rocks.

Moss agate is found in countries across the world, including India, Brazil, Uruguay, central European countries, and the United States.In the U.S., Montana moss agate is found in the alluvial gravels of the Yellowstone River and its tributaries between Sidney and Billings, Montana. It was originally formed in the Yellowstone National Park area of Wyoming as a result of volcanic activity. In Montana moss agate the red color is the result of iron oxide and the black color is the result of manganese oxide.

The gemstone has also been known as "Mocha stone" after the Arabian city of Mocha in Yemen, once a source.

It will be sent max insured

South Africa

Moss Agate Fine polished Large moss agate Sphere - Height: 8.79 cm - Width: 8.79 cm- 900 g

Minerals & Meteorites

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Closing date

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18 February

tomorrow

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Location

Germany

Italy

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United Kingdom

Latvia

Czech Republic

Türkiye

Poland

India

Ireland

Belgium

Switzerland

Romania

Greece

Austria

Estonia

Taiwan

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Singapore

Slovak Republic

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Dimensions

Height

Width

Depth

Object

Raw mineral

Metaphysical stones

Carved mineral

Meteorite

Amber

Necklace

Mineral cabochon

Bracelet

Ring

Nugget

Pendant

Earrings

Gemstone cabochon

Chain

2 piece jewellery set

Necklace with pendant

Bangle

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Drop earrings

Collar necklace

Pallasite meteorite

Tektite meteorite

Fossilised wood

Achondrite meteorite

Chondrite meteorite

Country of origin

Brazil

Madagascar

Ethiopia

Afghanistan

China

Australia

Tanzania

Morocco

Pakistan

Uruguay

Mexico

Indonesia

Russia

Algeria

Myanmar

United States

DR Congo

Colombia

Material

Silver

Stone

Agate

Mineral

Steel

Brass

Plaster

Metal

Lapis Lazuli

Malachite

Gender

Women

Unisex

Condition

As new - unused

Natural

Excellent condition - barely used with minimal signs of wear

Enhanced

Good condition - used with some signs of wear

Good condition

Very good condition - slightly used with small signs of wear

Composed

Good condition - used with small signs of aging & blemishes

Hand carved

Near mint

Excellent condition

Excellent condition: barely used with minimal signs of wear

Good

Very good

Restored

Period

Paleogene, Eocene (56 - 33.9 million years)

Paleogene, Oligocene (33.9 - 23.03 million years)

Neogene, Miocene (23.03 - 5.33 million years)

2026

Cretaceous, Lower (145 - 100.5 million years)

2010-2020

2025

1970-1980

1990-2000

2020+

1960-1970

Cretaceous, Upper (100.5 - 66 million years)

Cretaceous (145 - 66 million years)

Devonian (419.2 - 358.9 million years)

Mesozoic (251.9 - 66 million years)

Cenozoic (66 - 0 million years)

1850-1900

Mid 20th century

Opal

Coral

Pearl

Freshwater cultured pearl

Turquoise

Aquamarine

Quartz

Amethyst

Garnet

Lapis lazuli

Emerald

Star Sapphire

Onyx

Carnelian

Ruby

Cat's Eye (Chrysoberyl)

Jade

Natural Pearl

Mixed gemstones

Akoya cultured pearl

Moonstone

Topaz

Blood Coral

Sapphire

Certification

No laboratory report

GEM-TECH Istituto Gemmologico

Anchor Cert

Gem research Swiss Lab (GRS)

Antwerp Laboratory for Gemstone Testing (ALGT)

Signature

Not signed

Colour

Green

Purple

Blue

Orange

Yellow

Pink

Transparent

Minerals & Meteorites

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Moss Agate Fine polished Large moss agate Sphere - Height: 8.79 cm - Width: 8.79 cm- 900 g

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