Loading, please wait...

Use mousewheel to zoom in and out, click to enlarge

Details

LOT 1954

Natural History - Amethyst Crystal Specimen Group

1 3/4 - 2 1/2 in. (587 grams total, 46-62 mm).

A group of ten amethyst crystal specimens, each held in a white card collector's tray labelled 'Rio Grande do Sul, Brazil'. [10, No Reserve]

Provenance

From Rio Grande do Sul, Brazil.
Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).

CONDITION

VETTING:

TimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process


AUCTIONS:

TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.

LOT 1954

Natural History - Amethyst Crystal Specimen Group

Sold for (Inc. bp): £13

Print page

RELATED LOTS

  • Natural History - Box of Iceland Spar Mineral Specimens
    Natural History - Box of Iceland Spar Mineral Specimens

    Sold for (Inc. bp): £169

    A group of over 40 Iceland Spar mineral specimens; held in a cardboard box. 2.57 kg total, 35-48 mm



    Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).

    Lot Details

  • Natural History - Knightia Fossil Fish
    Natural History - Knightia Fossil Fish
    Eocene Period, 56-33 million years B.P.

    Sold for (Inc. bp): £33

    A Knightia alta fossil fish in matrix. 678 grams, 18 cm wide



    From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.

    Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils.

    Lot Details

  • Natural History - Fossil Beetle
    Natural History - Fossil Beetle
    Cretaceous Period, 108-92 million years B.P.

    Sold for (Inc. bp): £7

    A fossil beetle in matrix. 136 grams, 10 cm



    From Santana Formation, Brazil. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.

    Lot Details

Stay up-to-date with the latest from TimeLine Auctions by joining our mailing list