Golden UV Calcite After Stilbite with Natural Phosphorescence – Maharashtra, India – 0.11 lbs

This rare and fascinating Golden UV Calcite After Stilbite specimen from Maharashtra, India weighs 0.11 lbs and measures approximately 1.6 in x 1 in x 2.4 in, showcasing both a remarkable mineral replacement process and uncommon luminescent properties.

The specimen features golden calcite that has replaced an earlier stilbite crystal formation, preserving the original crystal habit while creating a unique pseudomorph. The warm golden coloration and lustrous crystal surfaces make for an attractive display under normal lighting, while its luminescent behavior truly sets it apart.

Under 365nm ultraviolet light, the calcite fluoresces brilliantly, revealing vibrant hidden color. Even more remarkable, the specimen exhibits natural phosphorescence, continuing to glow briefly after the UV light source has been removed. This rare characteristic makes the specimen especially desirable among collectors of fluorescent and phosphorescent minerals.

Its compact cabinet size and unusual combination of pseudomorphism, fluorescence, and phosphorescence make it an exceptional addition to any advanced mineral collection.

Details:

• Material: Calcite After Stilbite
• Origin: Maharashtra, India
• Weight: 0.11 lbs
• Dimensions: Approx. 1.6" x 1" x 2.4"
• Golden calcite pseudomorph after stilbite
• Fluorescent under 365nm UV light
• Natural phosphorescent response
• Rare luminescent mineral specimen
• Collector-quality display piece
• Exact piece shown

Mineralogical Notes:

Calcite commonly forms through secondary mineralization processes and can occasionally replace earlier minerals while preserving their external crystal structure. This process creates a pseudomorph, providing evidence of the specimen's geological history. Certain calcite specimens contain activator elements that allow them to fluoresce under ultraviolet light and, more rarely, exhibit phosphorescence after the UV source is removed.

Collector Notes:

Phosphorescent mineral specimens are considerably less common than standard fluorescent minerals. Examples combining calcite pseudomorphism, strong UV response, and visible afterglow are highly sought after by collectors specializing in luminescent minerals and unusual mineral associations.

Carefully packaged and shipped from Colorado.
Exact item shown.
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