Rare Pseudomorph Crystal. Pale blue green plumbogummite altering yellow pyromorphite. Miniature Mineral Specimen
Dimensions (millimeters): 35 x 28 x 22
Dimensions (inches): 1.4 x 1.1 x .9
Origins: Yangshao Mine, Guangxi Province, China
A specimen of plumbogummite after pyromorphite. Pseudomorphism is the existence of a mineral that has the appearance of another mineral. Pseudomorph means false form. Pseudomorphism occurs when a mineral is altered in such a way that its internal structure and chemical composition is changed but its external form is preserved. Here pyromorphite is almost completely replaced by rare plumbogummite exquisitely retaining the structure of the pyromorphite Plumbogummite is a lead phosphate (PbAl3(PO4)2(OH)5•(H2O)) and Pyromorphite is Pb5(PO4)3Cl
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