Rhodonite with Galena

specimen number:
1115239

location:
Broken Hill, New South Wales, Australia

description:

A blocky deep red partially gemmy crystal of rhodonite 2.0 cm in size coming off of a massive galena matrix. In good condition, this is classic material for this locality and species. Beautiful when backlit as shown in the picture and at the end of the video. At one time part of the collection of William and Elizabeth Moller.

The Broken Hill mining district, located in the far west of New South Wales, Australia, is home to the world's largest and most prolific continuous accumulations of silver, lead, and zinc. Geologically, this colossal ore body, known as the Line of Lode, is a highly deformed, boomerang-shaped stratiform Broken Hill-type (BHT) deposit hosted within the Paleoproterozoic-age metamorphic rocks of the Willyama Supergroup. Formed nearly 1.7 billion years ago through complex sub-seafloor hydrothermal or exhalative processes, the deposit features remarkably distinct lenses of massive lead and zinc sulfides, generating globally renowned primary minerals like galena and sphalerite alongside an incredibly diverse array of unique, highly sought-after secondary oxidation-zone minerals including rhodonite, spessartine, cerussite, pyromorphite, and smithsonite. Historically, boundary rider Charles Rasp first discovered the massive, black ironstone outcrop in September 1883, leading directly to the formal incorporation of the Broken Hill Proprietary Company (BHP) in 1885, which evolved into a premier global mining house. The district quickly became an epicenter of technological innovation, pioneering the revolutionary industrial froth flotation process to separate complex sulfide minerals and serving as the birthplace of Australia's modern trade union movement following monumental labor strikes in 1919 and 1920. While BHP moved away from local mining operations in 1939 to focus heavily on steel production, underground and open-pit extraction by successive corporate entities continued uninterrupted along the central strike for over a century.

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