Guide
Quartz specimens for sale
4,366 for sale · $2–$655,000 USD
12,746 in the gallery
Quartz is a common mineral composed of silicon dioxide with a wide range of appearances. It typically forms hexagonal prisms terminated by pyramidal faces and can occur in transparent, translucent, or opaque varieties. Colorless varieties display a glassy luster, while smoky, amethyst, citrine, and other colorations arise from trace elements and radiation effects.
- Formula
- SiO2
- Rarity
- Abundant
- Stability
- Stable
- Collector interest
- Very High Interest
- Classification notes
- Silicates; tectosilicates (framework silicates); SiO2
Key characteristics
- Crystal system
- trigonal
- Mohs hardness
- 7
- Specific gravity
- 2.65–2.66
- Luster
- vitreous, greasy
- Transparency
- transparent, translucent, opaque
- Color
- colorless, white, gray, black, brown, red, orange, yellow, green, blue, violet, pink
- Streak
- white
- Cleavage
- none
- Fracture
- conchoidal, subconchoidal, uneven
- Crystal habit
- prismatic, pyramidal, druzy, granular, massive, fibrous, radiating, stalactitic
- Gem mineral
- Classic / historic
Buy Quartz specimens
View all 4366Where Quartz is found
Top localities
- Yaogangxian Mine260 specimens
- Nashik162 specimens
- Panasqueira Mines135 specimens
- Minas Gerais134 specimens
- Orange River124 specimens
- Sweet Home Mine113 specimens
- Wushan Spessartine Mine111 specimens
- Jalgaon District95 specimens
- Jinlong Hill95 specimens
- Brandberg Area93 specimens
Guides
All guides
Guide
Quartz from Yaogangxian Mine, China
Yaogangxian Mine quartz, China — famed for pale quartz with purple fluorite cubes set in a tungsten-tin hydrothermal system; a premier locality for collectors.Read guide
Guide
Quartz from Orange River, Southern Africa
Orange River quartz - hematite-bearing quartz with red phantoms, brick-red cores, and clear overgrowths; a district-wide classic with amethyst variants.Read guide
Guide
Quartz from Mount Ida Mountain Mine, Arkansas, USA
Quartz from Mount Ida Mountain Mine, Arkansas - classic, glassy rock crystals with sharp prisms and icy luster from a historic Ouachita pocket-rich locality.Read guide
Guide
Quartz from Herkimer County, USA
Herkimer Quartz, Herkimer County, New York - iconic doubly terminated crystals, glassy and water-clear, prized for locality variety and collector appeal.Read guide
Guide
Quartz from Hallelujah Junction, USA
Quartz from Hallelujah Junction, USA - smoky scepters with caps, phantoms, and color zoning from granodiorite pockets; a sculptural, collector-favorite localit…Read guideAbout Quartz
Notable specimens come from diverse areas such as Brazil and the United States, where quartz occurs in geodes, hydrothermal veins, and pegmatites. Worldwide, it appears in drusy clusters, single towering crystals, and massive crusts, often integrated with other minerals in host rocks. Collectors prize clear or vividly colored crystals for size, termination quality, and the harmony of form within matrix or within geode slices. Quartz also serves as a reference mineral for crystallography and accessory mineral studies, making well-formed specimens appealing to both field collectors and cabinet drawers.
