mineral

White Quartz with Black Tourmaline

Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

Hardness: 7 (Quartz) and 7-7.5 (Tourmaline); Color: Milky white with black inclusions; Luster: Vitreous to greasy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Indistinct; Specific Gravity: 2.65-3.1.

Hardness: 7 (Quartz) and 7-7
Color: Milky white with black inclusions
Luster: Vitreous to greasy

Identified June 13, 2026More mineral →

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Physical properties

Formation & geological history

Formed in pegmatites and hydrothermal veins when silica-rich fluids and boron-rich minerals crystallize together under high temperature and pressure, typically during the final stages of magmatic cooling.

Uses & applications

Used primarily in lapidary work for cabochons and beads, as decorative specimens for collectors, and widely used in metaphysical/spiritual communities as a 'grounding' stone.

Geological facts

Black tourmaline inclusions inside quartz are sometimes called 'Schorl inclusions.' While the individual minerals are common, aesthetically pleasing combinations are prized by mineral enthusiasts.

Field identification & locations

Identify by looking for vitreous white/clear mass containing needle-like or chunky black prismatic crystals that can scratch glass. Common in Brazil, Madagascar, and the USA (California/Maine).

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Nephrite Jade

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Mineral/Rock

Banded Gneiss (River Rock/Pebble)

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