Brookite with Goethite - Specimen

Mined from: Rutherford Deposit (Moses Hill), Magnet Cove, Hot Spring County, Arkansas, USA

Brookite was named in 1825 by the mineralogist Armand Lévy in honour of Henry James Brooke (1771–1857), an English textile manufacturer and amateur crystallographer who was a fellow of the Royal Society. Its type locality, where it was first described, is in Gwynedd, Wales.

Brookite is one of the natural forms of titanium dioxide, together with rutile and anatase. It is found as an accessory mineral in alpine-type veins in gneiss and schist and in hydrothermal veinlets, often with quartz, anatase, rutile and hematite. It is a widespread mineral, but only a few localities produce fine crystals.

At Magnet Cove in Arkansas, brookite was first reported by Charles Shepard in 1846. He thought it was a new mineral and named it arkansite after the state. In 1849, several scientists showed that arkansite was the same as brookite, and old specimens are still sometimes labelled arkansite. Magnet Cove brookite is known for sharp, black, lustrous crystals, unlike the transparent or translucent brown crystals found elsewhere, because iron and niobium take the place of some of the titanium. The mineralogist Edward S. Dana noted that most of the crystals there were found loose, scattered through the soil.

This striking one-of-a-kind specimen features a dense growth of dark Brookite crystals associated with Goethite, most likely from the historic Rutherford Deposit at Moses Hill in Magnet Cove, Arkansas. The Brookite forms abundant thick, bladed to blocky crystals with strongly striated surfaces, ranging from dark olive-black to nearly opaque black. Beneath and between the Brookite are reddish-brown to dark brown iron-rich Goethite formations, creating an unusually complex and highly textured specimen.

Magnet Cove is one of the classic localities for Brookite and is particularly noted for producing unusually thick, black crystals. Brookite from this district was historically called “Arkansite” before being recognized as Brookite, and the locality remains one of the most important American occurrences of the species.

Brookite is associated with expanded awareness, transformation and energetic clarity, while Goethite is traditionally associated with grounding, stability and connection with the Earth.

Quantity: 1pc
With this product, you will get the actual stone in the photograph.