Description
Product Overview
This Cavansite on Matrix specimen from India is a striking natural mineral piece featuring vivid blue crystal clusters set against a contrasting host rock. Carefully selected for its colour, crystal form, and overall visual impact, this specimen showcases one of the most recognisable and sought-after zeolite-associated minerals. The photograph provided shows the exact specimen you will receive, ensuring full transparency and confidence in your purchase. This crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as a genuine geological specimen. Please refer to the listing images for full sizing and scale.
Geology & Formation
Cavansite is a rare calcium vanadium silicate mineral with the chemical formula Ca(VO)Si₄O₁₀·4H₂O. It forms in low-temperature hydrothermal environments, most commonly within basaltic volcanic rocks. The classic localities in India, particularly the Deccan Traps, are globally renowned for producing high-quality cavansite specimens.
These formations occur when mineral-rich fluids circulate through cavities and fractures in basalt. As the fluids cool and interact with existing minerals, cavansite crystallises alongside other secondary minerals, often in association with the zeolite group. Over time, repeated mineral deposition results in the formation of spherical crystal aggregates within open cavities.
Crystal Structure & Characteristics
Cavansite crystallises in the orthorhombic crystal system, though it is most commonly seen as radiating clusters of fine, acicular (needle-like) crystals. These needles grow outward from a central point, forming spherical or rosette-like aggregates.
This specimen displays classic cavansite crystal habit, with bright blue spherical clusters composed of densely packed crystal fibres. The surface exhibits a silky to slightly vitreous lustre, with fine crystal terminations creating a soft, velvety appearance.
The matrix provides a natural base, often consisting of basalt or associated minerals, offering geological context and contrast to the vibrant crystal clusters.
Colour & Visual Appeal
Cavansite is best known for its intense electric blue colour, which is caused by the presence of vanadium within its structure. This vivid blue is highly distinctive and rarely matched by other minerals, making cavansite particularly desirable among collectors.
The clusters may range from lighter sky blue to deeper, more saturated tones depending on crystal density and lighting conditions. The contrast between the bright blue spheres and the typically neutral or pale matrix enhances the visual impact of the specimen.
The radiating crystal structure creates a textured surface that interacts with light, adding depth and subtle sparkle.
Formation Environment & Associated Minerals
Cavansite is commonly found in association with minerals such as stilbite, heulandite, apophyllite, and other zeolites within basalt cavities. These mineral assemblages reflect the complex hydrothermal processes that occur in volcanic environments.
Indian specimens are particularly valued due to their well-formed crystal clusters and strong colour, making them some of the finest examples available on the market.
Collecting & Display Appeal
Cavansite on matrix is highly sought after by collectors due to its rarity, vivid colour, and distinctive crystal habit. Specimens from India are especially prized for their quality and aesthetic appeal.
Each piece is entirely unique, with variations in cluster size, placement, and matrix composition ensuring individuality. This specimen is ideal for display in mineral cabinets, on shelves, or as a standout decorative piece.
Its bright colour and natural form make it a focal point in any collection or interior setting.
Traditional & Cultural Context
Cavansite has gained recognition in modern mineral collecting for its vibrant colour and association with classic Indian localities. In some contexts, it is appreciated in a spiritual or symbolic sense, traditionally associated with clarity and natural mineral beauty in a non-medical way.
Authenticity & Assurance
This crystal is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. Each piece is individually selected for quality and visual impact. The image provided shows the exact cavansite specimen you will receive, ensuring full confidence in your purchase.
Ideal Gift or Collection Piece
This Cavansite on Matrix from India makes a distinctive gift for mineral collectors, geology enthusiasts, or anyone who appreciates rare and colourful crystal formations. Its intense blue colour, unique spherical structure, and natural origin make it a standout addition to any collection or display.
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