3.2" Yellow, Cubic Fluorite Crystal Cluster with Calcite - Spain

This is an alluring, 3.2" wide yellow fluorite crystal cluster that's coated in an aggregation of calcite crystals, collected from the Villabona Mines in Asturias, Spain. The crystals are translucent, fluorescent and display a beautiful deep yellow color. Under both long wave and short wave UV, these fluorite crystals fluoresce a beautiful deep yellow color, while the calcite fluoresces orange-pink. Some fluorite crystals from this locality will display gorgeous fluorescent phantoms within the cubic crystal, dependent on impurities present during formation.

This fluorite cluster comes with an acrylic display stand.

Fluorite is a halide mineral comprised of calcium and fluorine, CaF2. The word fluorite is from the Latin fluo-, which means "to flow". In 1852 fluorite gave its name to the phenomenon known as fluorescence, or the property of fluorite to glow a different color depending upon the bandwidth of the ultraviolet light it is exposed to. Fluorite occurs commonly in cubic, octahedral, and dodecahedral crystals in many different colors. These colors range from colorless and completely transparent to yellow, green, blue, purple, pink, or black. Purples and greens tend to be the most common colors seen, and colorless, pink, and black are the rarest.

About Calcite Crystals

Calcite crystals are a form of calcium carbonate (CaCO₃) known for their diverse shapes, transparency, and vibrant range of colors. They typically form in rhombohedral, scalenohedral, or prismatic shapes, often with well-defined, sharp edges and glossy surfaces. Calcite crystals are often translucent or transparent, sometimes displaying a double refraction effect where objects viewed through the crystal appear doubled. They can appear in various colors—white, clear, yellow, pink, blue, green, and orange—depending on impurities or trace minerals.

A notable characteristic of calcite is its reaction with weak acids like vinegar, which causes it to effervesce, or fizz, as it releases carbon dioxide. This property makes calcite crystals a key tool in geological identification and studies. Calcite forms in many environments, from sedimentary rocks like limestone and marble to hydrothermal veins.

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DETAILS
SPECIES
Fluorite & Calcite
LOCATION
Villabona Mines, Asturias, Spain
SIZE
3.2" wide
CATEGORY
SUB CATEGORY
ITEM
#98706