Beryl (likely Emerald or Aquamarine in matrix)

Physical Properties

Hardness: 7.5-8 on Mohs scale; Color: Pale green to blue-green; Luster: Vitreous to pearly; Crystal structure: Hexagonal; Specific gravity: 2.63-2.90.

Formation & Geological History

Commonly forms in granitic pegmatites and metamorphic hydrothermal veins where beryllium is present. Often found within host rocks like schist or quartz.

Uses & Applications

Primary source of beryllium metal used in aerospace and electronics; gem-quality specimens are highly prized for jewelry.

Geological Facts

The green color in emerald is caused by trace amounts of chromium or vanadium, while the blue in aquamarine is caused by iron. It is one of the most important gemstone minerals.

Field Identification & Locations

Identify by its hexagonal crystal habit and extreme hardness. Often found in micaceous schists or pegmatite deposits in Brazil, Colombia, and the Ural Mountains.

Identified on: 5/2/2026

Mode: Standard