Vintage Sterling Silver Blue John Necklace Pendant Small Hallmarked Cabochon Charm Border Bleu Jaune Womens Mens Rare Gemstone Retro Jewelry silver georg adorned with a natural turquoise

adorned with a natural turquoise gemstone

with a belt buckle decoration on the face

The metal on the earrings is base metal which is typical of earrings of this type and era

showing the yellow gold underneath

Vulcanite (or ebonite as it's sometimes called) is an antique hard rubber

Vintage Sterling Silver Blue John Necklace Pendant Small Hallmarked Cabochon Charm Border Bleu Jaune Womens Mens Rare Gemstone Retro Jewelry silver georg adorned with a natural turquoiseDESCRIPTION: A petite vintage sterling silver and genuine blue john mineral necklace pendant charm. The pendant is fully hallmarked for sterling silver, dating to 1994. It weighs 2. 78g and is small in size, the size dimensions are in the later photos. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK (not far from me), it is in fact Britain's rarest mineral.