mineral

Raw Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium)

Hardness: 7.5-8.0 on Mohs scale; Color: Green to bluish-green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Poor/Indistinct; Specific Gravity: 2.76.

Hardness: 7
Color: Green to bluish-green
Luster: Vitreous (glassy)

Identified May 10, 2026More mineral →

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Physical properties

Hardness: 7.5-8.0 on Mohs scale; Color: Green to bluish-green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Poor/Indistinct; Specific Gravity: 2.76.

Formation & geological history

Formed in hydrothermal veins or at the contact of granitic magmas with metamorphic rocks like schist. The presence of chromium and vanadium during crystal growth provides the green hue. Often found in Precambrian to Cenozoic deposits.

Uses & applications

Primarily used in high-end jewelry and as a precious gemstone. Lower quality specimens are highly sought after by mineral collectors for their raw hexagonal form.

Geological facts

Emerald is one of the four recognized 'precious' gemstones along with diamond, ruby, and sapphire. The name originates from the Greek 'smaragdos' meaning green gem.

Field identification & locations

Identify in the field by its distinct hexagonal prismatic shape, green color, and high hardness. Common sources include Colombia, Brazil, and Zambia. Collectors look for clarity and 'jardin' (internal inclusions).

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