Smoky Quartz 4mm Round - 15-16 Inch Stone Type_Indigo Gabbro Azurite in crystal form is

Azurite in crystal form is extremely rare and expensive

Blood Quartz is a clear to milky-white silicon dioxide mineral

as Obsidian can be formed into a blade many times sharper than steel surgical blades

often used in healing and meditation and as religious objects in funerary rites and to dispel evil

As a Serpentine

Smoky Quartz 4mm Round - 15-16 Inch Stone Type_Indigo Gabbro Azurite in crystal form isSmoky Quartz is a translucent smoky brown or gray variety of Quartz. It ranges from almost completely transparent to an almost opaque brownish to gray crystal. The color of Smoky Quartz is due to natural irradiation and traces of aluminum within the crystal lattice of the stone. Smoky Quartz it the national gem of Scotland, where it was mined since around 300 BCE.