Plumbogummite

Formula:PbAl3(PO4)(PO3OH)(OH)6

Colour:Light blue, gray-white, yellow-gray, yellow, yellow-brown, red-brown，etc.

Classification:Phosphates

Lustre:Resinous, Dull

Crystal System:Trigonal

Hardness:4-5

Specific Gravity:4.014


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