A crystalline silica mineral characterised by its milky or pure white base colour, interspersed with skinny, metallic streaks of a treasured yellow steel, is commonly wanted for its distinctive aesthetic properties. The presence of the metallic inclusions creates placing patterns inside the stone, leading to visually interesting materials ceaselessly employed in ornamental purposes.
The desirability of such materials stems from its rarity, visible class, and perceived affiliation with wealth and prosperity. Traditionally, the mix of the white mineral and yellow steel has been valued in jewellery making, decorative objects, and architectural elaborations. The distinction between the colours provides visible curiosity, elevating the perceived worth and making it an announcement piece.