This round piece of larvikite has bits of flash throughout, like regular labradorite, but black/ grey; a thunderstorm in a key chain!
Larvikite is also known as spectrolite, black labradorite & even Norwegian Pearl granite or blue pearlstone. This stone is 2.5 cm (1 inch) across; the key ring is slightly smaller. The two are linked by a short chain of stainless steel, making the entire keychain about 10 cm (4 inches) long.