Tarbuttite specimens for sale

6 for sale · $475–$8,500 USD

27 in the gallery

Tarbuttite is a zinc phosphate mineral that forms as small to medium-sized crystals in hydrothermal veins and oxidized zones. The habit often features prismatic to tabular crystals with a vitreous to resinous lustre, and its color ranges from yellow to green, sometimes with a pale, translucent appearance. It typically occurs in association with other secondary phosphate minerals and can crystallize in colorful, well-formed aggregates that attract careful handling by collectors.

Formula
Zn2(PO4)(OH)
Rarity
Rare
Stability
Moderately Stable
Collector interest
Moderate Interest
Classification notes
Phosphate, hydroxyl phosphate; Strunz 8.BB

Key characteristics

Crystal system
monoclinic
Mohs hardness
3.5–4
Specific gravity
4.12–4.13
Luster
vitreous, resinous
Transparency
transparent, translucent
Color
colorless, white, gray, yellow, green, brown
Streak
white
Cleavage
perfect
Fracture
uneven
Crystal habit
prismatic, tabular, bladed, granular, massive

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Where Tarbuttite is found

Top localities

  1. Kabwe Mine8 specimens
  2. Skorpion Mine8 specimens
  3. Karas Region5 specimens
  4. Warmbad2 specimens

About Tarbuttite

Significant specimens come from Namibia and Zambia, where tarbuttite occurs in oxidized zinc-bearing rocks and is frequently found in intricate crystal clusters that display bright, glassy faces. Collectors prize these specimens for their crisp edges, strong luster, and the way their color shifts under different lighting. While not among the most abundant minerals, tarbuttite’s striking crystals and locality associations make it a sought-after material for display cabinets and educational study, offering visual appeal and mineralogical interest in equal measure.