Quartz (all varieties)

Quartz - Species Overview

(Silicon Dioxide · SiO₂)

Quartz is one of the most abundant minerals on Earth and forms an enormous family of gem varieties. From clear rock crystal to richly colored amethyst, citrine, smoky quartz, prasiolite, and the many included or patterned types, quartz offers exceptional versatility for an approachable price point.

Origins

Quartz forms in environments ranging from volcanic cavities to hydrothermal veins and metamorphic rocks. Common sources include:

Brazil
Madagascar
United States
Uruguay

Different varieties form under different geological conditions, giving rise to the incredible diversity seen in the quartz family.

Durability & Wearability

Quartz is a reliable, everyday‑friendly gemstone:

Hardness: 7 on the Mohs scale
Good toughness suitable for most jewelry
Resistant to normal wear, though it can be scratched by harder materials
Stable color in most varieties
Excellent for rings, pendants, earrings, and statement pieces

Quartz offers a balance of beauty, durability, and affordability, making it one of the most versatile gem species available.

Synthetics

Synthetic quartz does exist, and although it is primarily produced for industrial and optical applications, we do occasionally offer synthetic varieties. Synthetic quartz can provide deeper greens and blues not found naturally. It will be clearly listed if any of our pieces offered are cut from hydrothermally grown synthetic materials.