Mangano Calcite with Rainbow Pyrite – Huanzala Mine, Peru - 77 grams

An exceptional collector specimen featuring brilliant manganoan calcite crystals beautifully accented by iridescent rainbow pyrite from Peru. Under normal lighting, the specimen displays sharp translucent calcite crystals emerging from a contrasting white matrix with vivid metallic flashes of naturally tarnished pyrite. Under shortwave UV light, the manganoan calcite erupts into an intense neon pink-red fluorescence, creating an unforgettable display.

The combination of crystallized manganoan calcite, colorful rainbow pyrite, and dramatic UV response makes this an outstanding display piece for both mineral collectors and fluorescent mineral enthusiasts. The fluorescence is exceptionally bright and uniform, ranking among the stronger examples seen from this locality.

Specifications

Primary Mineral: Manganoan Calcite
Associated Mineral: Rainbow Pyrite (naturally iridescent)
Locality: Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
Weight: 0.17 lbs (approximately 77 grams)
Dimensions: Approximately 2.5 × 2.5 × 2 inches
UV Reaction: Intense pink-red fluorescence under shortwave UV (254 nm); also displays strong fluorescence under many high-quality 365 nm UV lights
Condition: Natural collector specimen
Exact specimen shown

About Manganoan Calcite

Manganoan calcite is a manganese-rich variety of calcite in which manganese substitutes for calcium within the crystal structure. This substitution is responsible for the spectacular fluorescent response that has made the mineral highly sought after by collectors of fluorescent specimens.

The Huanzala Mine in Peru is internationally recognized for producing outstanding combinations of manganoan calcite with metallic sulfides, particularly pyrite and sphalerite. The contrast between bright white calcite, iridescent pyrite, and vivid fluorescent color creates specimens prized in advanced mineral collections.

Collector Notes

This specimen features:

• Exceptional pink-red UV fluorescence
• Sharp translucent manganoan calcite crystals
• Brilliant naturally iridescent rainbow pyrite
• Excellent aesthetic crystal arrangement
• Classic Peruvian collector locality
• Outstanding display specimen both in daylight and under UV illumination

Whether displayed under normal lighting or UV, this specimen offers two dramatically different appearances, making it a standout conversation piece in any collection.

Professionally packaged and shipped from Colorado.

You will receive the exact specimen shown.

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