Micro Mosaic St. Peter's Square Brooch

Micro mosaic brooch, featuring a detailed scene of St Peter's…
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Micro mosaic brooch, featuring a detailed scene of St Peter's square, Rome, inlayed into an onyx plaque with sterling silver frame and brooch fitting, stamped 'Stg.Silver', 44 grams

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  • Onyx - Onyx is a form of agate, used from antiquity and popular again in the 1920s and 30s. European onyx is generally green, but can be many other colours, and can contain bands of black and/or white.

    This multicoloured stone is widely used for table tops, lamp bases and in jewellery. Some types of onyx are also used for cameos of which the upper white layer is cut away to reveal the colour beneath.
  • Sterling Silver - Sterling silver is a mixture of 92.5% pure silver and 7.5% of another metal, usually copper. Fine silver is 99.9% pure silver, and is relatively soft and the addition of the very small amount of copper gives the metal enough strength and hardness to be worked into jewellery, decorative and household objects.

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