Pyromorphite on Limonite Matrix

From collection Minéraux 1 by Robelin jean pierre

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Details

Mineral name

Description

This mineral specimen features a cluster of vibrant, grass-green pyromorphite crystals set against a contrasting matrix of ochre-colored limonite. The pyromorphite occurs as small, prismatic to micro-crystalline aggregates with a resinous luster, primarily concentrated in a central patch on the specimen's face. The limonite matrix is porous and earthy, showing a range of yellow-brown to dark orange tones with a matte texture. The overall shape of the specimen is irregular and blocky, typical of a hand-sized mineral sample. The boundary between the lead-based pyromorphite and the iron-based limonite is sharp, highlighting the distinct mineralogical phases. No significant post-extraction damage or artificial stabilization is visible, and the crystal structures appear intact within the protective recesses of the matrix.

Chemical formula

Pb5(PO4)3Cl (Pyromorphite) / FeO(OH)·nH2O (Limonite)

Main color

Green

Hardness

3.50 Mohs

Conservation status

Very good

Quality level

Medium collector value

Crystal system

Hexagonal