Que Sera with Blue Quartz Skull Carving Pyramid What makes this calcite specimen

What makes this calcite specimen especially unique is the gray coloring that comes from marcasite and the presence of pyrite

"description": "This beautifully polished Moss Agate stone skull carving is the perfect focus for those who love skulls and earthy tones

59"Our crystals and minerals are natural

and the kambaba jasper is full of green swirls and patterns

so you know it's the perfect mineral specimen to work with for jewelry projects

Que Sera with Blue Quartz Skull Carving Pyramid What makes this calcite specimenIf you're lucky enough to find a piece of Que Sera, you may be tempted to turn it into a skull as we were. After all, the blue quartz phenocryst inclusions give it an eerie, otherworldly appearance. Que sera is a type of rhyolite formed through volcanic activity. Approximate Size: L: 2. 90" x W: 2. 00" x H: 2. 20"Approximate Weight: 0. 60 lbs. (300g) We make and carry many unique and one of a kind items made of materials from around the world. Some