Phosphophyllite

Phosphophyllite specimens for sale

1 for sale · $1,999–$2,000 USD

79 in the gallery

Phosphophyllite is a hydrated phosphate mineral that forms as delicate, emerald-green to blue-green crystals. It typically exhibits a vitreous to subadamantine luster and can appear in prismatic or tabular habits, often creating fragile, translucent aggregates. The mineral is prized for its striking color and rarity, with many well-known specimens arising from Bolivia and Germany, where secondary mineral environments promote its crystallization. Collectors value it for small, pristine crystals and for their historic, aesthetically soft hues that can fade with prolonged exposure to light.

Formula
Zn2Fe(PO4)2 · 4H2O
Rarity
Rare
Stability
Moderately Stable
Collector interest
Very High Interest
Classification notes
Phosphate, hydrated phosphate; phosphophyllite group

Key characteristics

Crystal system
monoclinic
Mohs hardness
3–3.5
Specific gravity
3.08–3.13
Luster
vitreous
Transparency
transparent, translucent
Color
colorless, white, green, blue
Streak
white
Cleavage
perfect
Fracture
uneven, conchoidal
Crystal habit
prismatic, tabular, massive, granular
  • Gem mineral
  • Classic / historic

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Where Phosphophyllite is found

Top localities

  1. Unificada Mine31 specimens
  2. Cerro de Potosí11 specimens
  3. Infiernillos Mine9 specimens
  4. Hagendorf North Pegmatite3 specimens
  5. Potosí3 specimens
  6. Hagendorf1 specimen
  7. Hagendorf South Pegmatite1 specimen
  8. Machacamarca mining district1 specimen
  9. Morococala Mine1 specimen

About Phosphophyllite

In hand specimens, phosphophyllite is most appreciated when well-terminated and free of matrix, revealing its crisp crystal faces and subtle luster. While not as common as more robust minerals, suitably prepared pieces can display a gently pearly sheen and a delicate translucency that catches the eye in a mineral cabinet. Its associations in classic localities contribute to its appeal, making high-quality crystals sought after by collectors who admire color, rarity, and the mineral’s delicate character.