LUDLAMITE – Extremely Rare Vivid Green Gem-Quality Crystals on Matrix, Amazonas, Brazil

From our curated selection of collector minerals, we present an extremely rare Ludlamite specimen from Brazil.

The piece is characterized by Ludlamite crystals of intense green color, displaying a tabular to wedge-shaped habit, forming radiating and sub-parallel groups typical of the species. The crystals show exceptional clarity and notable size — dimensions and transparency of this quality are seldom encountered, factors that significantly increase both the aesthetic value and mineralogical importance of the specimen.

The sample stands out for the quality of its crystallization and overall aesthetic balance, with features that highlight its natural structure and strong visual impact. Ludlamite was historically considered one of the rarest phosphate minerals in the world, with fine crystals traditionally sourced only from classic localities in Bolivia and Idaho, USA. The Cabeça do Cachorro claim in Amazonas, Brazil — first exhibited internationally in 2014 and still a relatively young, actively worked locality — has since transformed the availability of high-quality material of this species.

Ludlamite is a hydrated iron phosphate mineral, prized by collectors for its vivid green color and glassy luster. The intense green coloration is caused by Fe²⁺ (ferrous iron) within the crystal structure, the same chromophore responsible for green tones in related phosphates such as phosphophyllite.

• Formula: Fe₃(PO₄)₂·4H₂O
• Key chemical elements: Iron, Phosphorus, Oxygen, Hydrogen
• Hardness (Mohs scale): 3.5
• Mineral class: Phosphate
• Crystal system: Monoclinic
• Crystal habit: Tabular to wedge-shaped crystals, often forming radiating or sub-parallel groups
• Formation: Secondary mineral formed through the alteration of primary phosphate minerals (such as triphylite and vivianite) within granitic pegmatites
• Color: Intense green to bluish-green, translucent to transparent

Ludlamite was first described in 1877, named after English mineral collector Henry Ludlam, with the type locality being Wheal Jane mine in Cornwall, England. For over a century, fine crystals remained exceptionally scarce, prized almost exclusively among specialist phosphate collectors. The emergence of the Cabeça do Cachorro claim in Brazil has been described by dealers as having transformed the standards for the species, making vivid, gem-quality Ludlamite crystals accessible to collectors in a way that was previously unimaginable.

In crystal healing traditions, Ludlamite is associated with emotional balance and renewal, its fresh green tone linked to the heart chakra and to feelings of growth and calm. It is traditionally regarded as a stone that encourages clarity of thought and a grounded connection to nature. Please note that these interpretations are not scientifically proven.

Photos: All photographs are taken under professional lighting conditions to accurately highlight crystal structure, color and detail. However, slight variations in tone and appearance may occur depending on screen calibration and ambient lighting conditions.

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Multiple purchases can be consolidated into a single shipment, including items from different auctions or separate orders, by simply contacting us to arrange combined shipping. For high-value specimens, direct delivery by appointment is also available, either at home or at major European mineral shows and fairs.