This ethereal butterfly-shaped quartz cluster is a particularly aesthetic example of Japan-law twinning, cloaked in a fine druzy chalcedony overgrowth that shimmers in the light like frost on glass. From the gem fields of Madagascar, this piece captures a moment of geological perfection—the soft, white chalcedony coating preserves and enhances the sculptural geometry of the twinned quartz beneath, highlighting its rare crystallographic formation.

The butterfly or wing-like form is a natural result of the Japan-law twin habit, where two quartz crystals intersect at a near-perpendicular angle (84.33°), creating a visually symmetrical and poetic silhouette. These types of twins are among the most sought-after habits in the quartz family, especially when they occur in transparent or gemmy material as seen here.

What elevates this piece even further is the luster and uniform coverage of the druzy chalcedony layer, giving it a magical, snow-dusted appearance. While Madagascar is famed for its quartz, finding such an elegant twinned crystal so finely preserved and draped in microcrystalline silica is highly unusual.

6.5cm x 5.5cm x 4.2cm – a standout miniature cabinet specimen that straddles both aesthetic appeal and crystallographic interest.