Bog oak earrings handmade for you by Trish Rogers. Choice of dangly earrings or studs. These earrings are made from bog oak which has been authenticated by Queens University Belfast (QUB) as being 6,000 years old. That means you get to wear a little piece of Irish history. An extremely hard wood, bog oak has a lustrous jet-black shade after being polished into its final form, with growth lines visible in some pieces, giving added character and depth to the products. Gathering the wood herself from the bog near her home, Trish carefully selects the pieces she thinks are best suited for sculpture or for jewellery. Often, these are large chunks of trees brought up from deep within the ground, which are many thousands of years old.