Entry № 330
Plumbogummite
Plumbogummite
Botryoidal blue-green crust over old lead veins.
Chakra
Root · Third Eye
Element
Earth
Zodiac
Scorpio · Capricorn

I. The Metaphysical Reading
How the stone has been held.
Plumbogummite is worked with as a stone of transformation under pressure — a mineral that grows where older ore has broken down. Practitioners keep it for endings that have already happened but are still being processed, and for making something usable out of what is left.
- Chakra
- Root · Third Eye
- Element
- Earth
- Zodiac
- Scorpio · Capricorn
- Keynote
- Botryoidal blue-green crust over old lead veins.
II. The Scientific Reading
What the lattice actually does.
Plumbogummite is a hydrated lead aluminium phosphate of the alunite supergroup, forming in the oxidised zones of lead deposits where descending phosphate-bearing waters attack primary galena and pyromorphite. It commonly appears as botryoidal crusts and as epimorphs replacing pyromorphite crystals, notably at Yangshuo, Guangxi, China. As a lead mineral it should be handled dry and hands washed after use.
- Formula
- PbAl₃(PO₄)₂(OH)₅·H₂O
- System
- Trigonal
- Hardness
- 4 – 5 (Mohs)
- Provenance
- China (Yangshuo), England (Cornwall), France
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- PbAl₃(PO₄)₂(OH)₅·H₂O
- Crystal System
- Trigonal
- Mohs Hardness
- 4 – 5 (Mohs)
- Density
- 4.0 g/cm³
- Refractive Index
- 1.653 – 1.675
- Provenance
- China (Yangshuo), England (Cornwall), France
- Color Origin
- Blue-green, turquoise, yellowish, greyish white
Related Crystals
Stones that share this lattice
Next in the Atlas
Prasiolite (Green Amethyst)
Amethyst that went green in the heat.




