What is it? This is beautiful larvikite. Larvikite is a relatively new stone for me, but I’m starting to think that it’s kind of special. It is also known as pub stone or black labradorite.
What do I look for? Characteristically, larvikite has a silvery-gray background and black flecks throughout. It displays iridescence or chatoyance seen as flashes of blue light. This is similar to the labradorescence seen in labradorite. But, while labradorite is a translucent stone, larvikite appears opaque.