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  2. List of hoards in Ireland - Wikipedia

    en.wikipedia.org/wiki/List_of_hoards_in_Ireland

    Gold models of ship and cauldron, torc, from the Broighter Hoard. The list of hoards in Ireland comprises the significant archaeological hoards of coins, jewellery, metal objects, scrap metal and other valuable items that have been discovered on the island of Ireland (Republic of Ireland and Northern Ireland).

  3. A History of Ireland in 100 Objects - Wikipedia

    en.wikipedia.org/wiki/A_History_of_Ireland_in...

    Details of the hundred objects, written by Irish Times journalist Fintan O'Toole, were initially serialized in The Irish Times between February 2011 and January 2013. In February 2013 a book about the hundred objects written by O'Toole, entitled A History of Ireland in 100 Objects , was published, and it quickly became a best-seller with 35,000 ...

  4. Asterism (gemology) - Wikipedia

    en.wikipedia.org/wiki/Asterism_(gemology)

    Asterism on the surface of a blue star sapphire. A purple-pink star sapphire displaying asterism in a platinum ring.. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone.

  5. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    Padparadscha sapphires are rare; the rarest of all is the totally natural variety, with no sign of artificial treatment. [12] The name is derived from the Sanskrit padma ranga (padma = lotus; ranga = color), a color akin to the lotus flower (Nelumbo nucifera). [13] Among the fancy (non-blue) sapphires, natural padparadscha fetch the highest prices.

  6. List of sapphires by size - Wikipedia

    en.wikipedia.org/wiki/List_of_sapphires_by_size

    Sapphires are a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.

  7. Coins of Ireland - Wikipedia

    en.wikipedia.org/wiki/Coins_of_Ireland

    Coin of King "Sihtric" of Dublin (r. 989–1036– ) Hiberno-Norse coins were first produced in Dublin in about 997 under the authority of King Sitric Silkbeard.The first coins were local copies of the issues of Aethelred II of England, and as the Anglo-Saxon coinage of the period changed its design every six years, the coinage of Sitric followed this pattern.

  8. List of World Heritage Sites in the Republic of Ireland

    en.wikipedia.org/wiki/List_of_World_Heritage...

    Ireland ratified the convention on 16 September 1991. [3] As of 2025, Ireland has two sites on the list, and a further three on the tentative list. [3] The first site listed was Brú na Bóinne – Archaeological Ensemble of the Bend of the Boyne, in 1993. The second site, Sceilg Mhichíl, was listed in 1996.

  9. Porphyry (geology) - Wikipedia

    en.wikipedia.org/wiki/Porphyry_(geology)

    The term porphyry is from the Ancient Greek πορφύρα (porphyra), meaning "purple". Purple was the colour of royalty, and the Roman "imperial porphyry" was a deep purple igneous rock with large crystals of plagioclase. Some authors claimed the rock was the hardest known in antiquity. [3]