Chalcedony — misty light, hidden fibres and harmony woven from many forms
Chalcedony is a dense microcrystalline silica material composed mainly of extremely fine quartz fibres with varying amounts of moganite. Its crystals are too small to see individually, producing a smooth surface, softly diffused glow and colours ranging from white, grey and misty blue to lavender, pink, green, orange, red, brown and black. In broader use, the Chalcedony family includes Agate, Onyx, Carnelian, Sard, Chrysoprase, Bloodstone and many forms of Jasper.