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M619 Limonite Pseudomorph

M619 Limonite Pseudomorph

$550.00

This is an amazing new item at the Rock Shed. This is a Limonite pseudomorph after Pyrite from Gachala, Columbia. This beautiful large specimen shows the classic cross style of twinning from Columbia. It measures 3 5/8″ x 3 3/4″ x 3 1/2″ and weighs a whopping nearly 4 1/4 pounds. It has several areas where it’s Limonite edges have chipped off throughout time exposing a little bit of it’s Pyrite center. Truly a collector’s piece!

In stock

Description

Limonite after Pyrite is formed when Pyrite begins to decompose through chemical weathering and the iron present in the mineral starts to rust. Limonite is any impure hydrated iron oxide. Limonite is mostly clay but also may contain phosphates and silica. Once the rust has started, Limonite slowly starts to form. Limonite does not have one specific shape or crystal structure. Limonite pseudomorphs (takes the external shape) of other minerals such as Pyrite. Most Limonite has a brownish red color and leaves varying streak of color as the composition of Limonite could be made up of a different amount of phosphates or silica.

Additional information

Weight 4.25 lbs
Dimensions 3.625 × 3.75 × 3.5 in

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