mineral

Phantom Quartz with Chlorite and Hematite inclusions

Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)

AI-generated identification · may be incorrect

Hardness: 7 (Mohs scale); Color: Clear to smoky main crystal with green (chlorite) and reddish-brown (hematite) internal shadows or phantoms; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (Trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 (Mohs scale)
Luster: Vitreous (glassy)

Identified March 18, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins and pegmatites. The 'phantoms' occur when crystal growth is interrupted and another mineral (like chlorite) settles on the surface, which is then covered by a secondary layer of quartz growth. Many such specimens are found in Brazil or the Alps.

Uses & applications

Primarily used as high-end collector specimens, ornamental display pieces, and in the metaphysical/lapidary market for carving or jewelry.

Geological facts

A phantom crystal is essentially a crystal inside a crystal that records a pause in the geological growth period. The reddish-brown spotting is likely hematite staining or inclusions, while the green moss-like structures are chlorite.

Field identification & locations

Identify in the field by the distinct six-sided prismatic habit and internal 'ghost' outlines or inclusions that mimic the crystal's shape. Found in Alpine-type clefts or large quartz deposits in Minas Gerais, Brazil.