Rose Quartz

Rose quartz is the pink variety of quartz, the crystalline form of silicon dioxide (SiO₂). Rose quartz gets its pink color from microscopic inclusions of a fibrous mineral called dumortierite - not from trace elements like most colored quartzes. These tiny needle-like inclusions are so small (typically 1-10 micrometers) that they can't be seen with the naked eye, but they collectively absorb certain wavelengths of light, transmitting the characteristic pink.

This is why rose quartz almost never forms well-defined crystals - the dense network of dumortierite inclusions disrupts the crystallization process, causing the quartz to grow as massive (non-crystalline) chunks rather than pointed crystals. When distinct rose quartz crystals do occur (extremely rare, mostly from Brazil), they're highly prized by collectors.

In some specimens, the dumortierite inclusions are aligned in specific directions, creating a star effect (asterism) when the stone is cut into a cabochon and viewed under a single light source. Madagascar produces the finest star rose quartz, with sharp six-rayed stars visible in translucent pink stones.

Rose quartz is identified by its translucent pink color and massive habit. Unlike amethyst or citrine, it rarely forms pointed crystals. The pink is usually soft and even, not banded or zoned like agate. At Mohs 7, it's hard and durable.

Distinguish from pink tourmaline (which forms distinct crystals and is typically more saturated), rhodonite (opaque with black manganese veining), and rhodochrosite (banded pink and white, softer). The translucent, milky quality of rose quartz is quite distinctive. It often has a slightly cloudy or 'sleepy' appearance compared to the water-clarity of amethyst.