Plumbogummite

Plumbogummite specimens for sale

31 for sale · $200–$4,500 USD

152 in the gallery

Plumbogummite is a lead aluminum phosphate mineral that forms as tabular, prismatic crystals and aggregates with a distinctive blue to green to pale chartreuse coloration. It commonly occurs as well-formed crystals on matrix or as botryoidal to layered masses, displaying a resinous to vitreous luster that highlights its sharp faces and stepped terraces. Notable localities include China, Spain, Morocco, the UK, and Australia, where it has appeared in copper- and phosphate-rich deposits and on hydrothermal veins, often associated with other lead phosphates and secondary minerals. Collectors value Plumbogummite for its unusual crystal habit, range of colors, and the way it can form delicate, fabric-like aggregates or robust, larger crystals suitable for display. The mineral’s chemistry and reflective surfaces contribute to striking, metallic blue sheen under proper lighting, making specimens attractive for showcases and study alike.

Formula
PbAl3(PO4)2(OH)5 · H2O
Rarity
Common
Stability
Moderately Stable
Collector interest
Moderate Interest
Classification notes
Phosphates; Strunz 8.B (Phosphates with additional anions and H2O)

Key characteristics

Crystal system
trigonal
Mohs hardness
4.5–5
Specific gravity
4.01–4.08
Luster
vitreous, resinous, dull
Transparency
transparent, translucent, opaque
Color
white, gray, brown, yellow, green, blue
Streak
white
Cleavage
none
Fracture
conchoidal, uneven
Crystal habit
tabular, botryoidal, reniform, stalactitic, granular, massive

Buy Plumbogummite specimens

View all 31

Where Plumbogummite is found

Top localities

  1. Laohuan Mine18 specimens
  2. Yangshuo Mine8 specimens
  3. Roughton Gill Mine3 specimens
  4. Roughton Gill2 specimens
  5. Daoping Mine1 specimen
  6. Dry Gill Mine1 specimen

About Plumbogummite

In hand samples, Plumbogummite can exhibit a soft, waxy to vitreous luster and a fairly compact to platy habit, sometimes presenting pale yellow or cream intergrowths that contrast with deeper blue-green tones. Fine specimens typically come from well-documented hydrothermal or secondary environments where lead, aluminum, phosphate, and water-rich conditions promote crystallization. For collectors, the appeal lies in its visual diversity, locality-driven variation, and the way even small crystals contribute color and texture to a cabinet of minerals.