mineral

Included quartz pendant (likely tourmalinated quartz)

Quartz, SiO₂, with dark mineral inclusions; inclusions may be black tourmaline (schorl)

AI-generated identification · may be incorrect

The polished, translucent gray-brown quartz has a vitreous luster and visible dark inclusions. Quartz is Mohs 7, trigonal, and lacks cleavage; the pendant’s appearance alone cannot confirm the inclusion mineral.

Identified October 10, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich hydrothermal fluids or pegmatites; inclusions form as other minerals grow within it. The specimen’s geological age and exact locality cannot be determined from the image.

Uses & applications

Used as jewelry and a collectible; quartz is also widely used in glass, electronics, and industrial applications.

Geological facts

The trade name “tourmalinated quartz” is commonly used for quartz containing black tourmaline, though other dark inclusions can look similar.

Field identification & locations

Look for transparent-to-smoky quartz with distinct dark needles or patches; the pictured specimen is wire-wrapped and polished. Such material occurs in quartz veins and pegmatites worldwide.