Cognac quartz has the rich autumnal color of, yes, a fine cognac. More golden than smoky quartz and deeper than citrine, it is closest in color to golden topaz, though far more affordable. Cognac quartz has recently become quite popular among jewelry designers and, with the current vogue for colored stones, is now frequently showing up in fine jewelry.

Astrology: Connected with Capricorn and Leo
Chakra: 1st (root), 2nd (sacral), 3rd (solar plexus)

Cognac quartz ‘s deep, rich color goes splendidly with any of the other gems in an autumn palette: citrine, smoky quartz, amber, aventurine, and green and orange garnets (such as Tsavorite or grossular and spessartine). It also is accented nicely by black onyx and amethyst. For an unusual pairing, mix cognac quartz with Pietersite beads.

Color: Golden-brown
Chemical composition: SiO2 silicon dioxide
Mohs’ Hardness: 7
Transparency: Transparent
Luster: Vitreous
Fracture: Conchoidal, very brittle
Crystal system: Hexagonal (trigonal) with hexagonal prisms
Cleavage: None
Specific gravity: 2.65
Streak: White
Refractive index: 1.544-1.553
Dispersion: 0.013
Pleochroism: None
Fluorescence: None