Austinite

Austinite specimens for sale

6 for sale · $140–$1,200 USD

53 in the gallery

Austinite is a zinc calcium arsenate mineral that crystallizes in an orthorhombic system, commonly forming prismatic to tabular crystals with a vitreous to resinous luster. Its color range can include yellow to brownish hues, and it often appears in compact aggregates or thin, elongated crystals that catch the light in specimen displays. The mineral is associated with hydrothermal environments where arsenate minerals precipitate from aqueous fluids, and notable localities include Mexico, the United States, Namibia, and Greece, among others. Specimens from these regions are valued for their crystal form, color, and the rarity of well-formed Austinite crystals, making them sought after by collectors who specialize in arsenate minerals and unusual zinc-bearing species.

Formula
CaZn(AsO4)(OH)
Rarity
Rare
Stability
Stable
Collector interest
Very High Interest
Classification notes
Arsenate mineral; Strunz 08.BA

Key characteristics

Crystal system
orthorhombic
Mohs hardness
4–4.5
Specific gravity
4.12–4.13
Luster
vitreous, silky
Transparency
transparent, translucent
Color
colorless, white, gray, yellow, green
Streak
white
Cleavage
distinct
Fracture
uneven
Crystal habit
prismatic, acicular, fibrous, radiating, druzy, granular, massive
  • Fluorescent: green
  • Classic / historic

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Where Austinite is found

Top localities

  1. Ojuela Mine34 specimens
  2. Gold Hill Mine5 specimens
  3. Mohawk mine2 specimens
  4. Christiana Mine1 specimen
  5. Heson Mine1 specimen
  6. Hilarion Mine1 specimen
  7. Jean Baptiste Mine1 specimen
  8. Kamariza Mines1 specimen
  9. Potosi Mine1 specimen
  10. Brown Monster Mine, Reward Mine1 specimen

About Austinite

Collectors appreciate Austinite for its distinct composition and crystal habit, which set it apart from more common arsenates. The combination of sharp, elongated crystals and a glassy to vitreous surface provides a striking display in hand specimens and cabinets. For mineral enthusiasts, Austinite offers a window into hydrothermal mineralogy and the intricate mineral assemblages that develop under varying temperature and pressure conditions, rewarding careful study and careful collection.