Natural Purple Fluorite Crystal Cluster · 1780 g · Large Collector & Display Specimen

$302.01

Large natural **Purple Fluorite crystal cluster** weighing approximately **1.78 kg** and measuring around **147.3 × 115.9 × 90.2 mm**. The specimen displays well-developed **cubic crystal growth**, attractive purple to purplish-violet colour zoning, vitreous luster and translucent to locally transparent areas. Its substantial size and strong response to subtle backlighting make it an impressive collector and decorative display specimen.

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NGB Reference: NGB-000420 SKU: CL-NGBF024PU-092-042 Category: Brand:
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This impressive natural Purple Fluorite crystal cluster is a substantial collector and decorative specimen weighing approximately 1.78 kg / 1780 grams.

Measuring around 147.3 × 115.9 × 90.2 mm, the cluster has considerable physical presence and displays numerous naturally developed Fluorite crystal surfaces across its large three-dimensional formation.

The specimen presents attractive purple to purplish Fluorite coloration, with variations in saturation and transparency occurring naturally throughout the crystal mass. Fluorite is well known for its broad colour range and frequently develops distinct internal colour zoning, which can create additional depth when viewed from different angles or under transmitted light.

Fluorite is a natural calcium fluoride mineral (CaF₂) belonging to the cubic crystal system. Well-developed specimens are particularly appreciated by mineral collectors for their geometric crystal growth, vitreous luster and often striking colour distribution.

The substantial size of this specimen makes it particularly effective as a cabinet specimen or decorative centrepiece. Its natural crystal surfaces reflect light across multiple orientations, allowing different parts of the cluster to become visually prominent depending on the viewing angle.

One of the most attractive display characteristics of this particular specimen is its response to subtle backlighting or underlighting. A small, low-heat LED light positioned beneath or behind the cluster can enhance translucent areas and reveal additional internal colour zoning and structural depth without altering the natural appearance of the mineral.

The specimen remains in its natural, unpolished condition, preserving original crystal faces, growth structures, contact areas and geological surface characteristics. Natural fissures, minor edge irregularities, incomplete crystal

Overall Score: 92/100

NGB Grade: Excellent

Quality Evaluation

Color18.0/20
Material Quality18.0/20
Natural Characteristics18.0/20
Shape, Symmetry & Polish19.0/20
Overall Appeal19.0/20

Evaluation Notes

This natural Purple Fluorite cluster presents an **excellent overall collector-quality profile**, combining substantial size, strong geometric crystal development and attractive purplish-violet colour zoning.

The specimen shows numerous well-developed cubic faces with stepped growth structures, good surface luster and appealing translucency, while deeper purple zones create strong visual depth throughout the cluster. Natural cleavage-related fissures, internal veils, crystal contacts and minor edge irregularities are present and remain consistent with Fluorite’s physical properties and natural crystal formation.

Its large **1.78 kg** size, pronounced cubic morphology, attractive colour distribution and especially strong response to transmitted or underlighting give the specimen considerable decorative and collector presence. The combination of **crystal form, colour, luster, transparency variation, size and overall aesthetic impact** supports an **excellent 92/100 assessment**.

Species

Fluorite

Gemstone Variety

Fluorite

Color

Purple

Treatment

Unheated, Untreated

Gemological Properties

Dimensions147.3 × 115.9 × 90.2 mm
TransparencyTranslucent
ClarityN/A
Refractive Index1.434
Specific Gravity3.18
Hardness4 Mohs
Crystal SystemCubic
Dispersion0.007
LusterVitreous
Color DescriptionPurplish to deep purple fluorite crystal cluster
Transparency NotesTransparency varies across the natural crystal formation according to the dominant mineral and individual specimen.
Natural CharacteristicsThe specimen displays naturally developed **cubic Fluorite crystal growth** with visible stepped growth patterns, internal colour zoning and variations from pale lilac to deeper purplish-violet areas. Natural **cleavage-related fissures, internal veils, crystal-to-crystal contact features and minor edge irregularities** are visible throughout the cluster and are consistent with Fluorite’s perfect octahedral cleavage. Several crystal faces show subtle surface texture and growth markings, while transparency varies from **translucent to locally transparent**, particularly where the crystal mass is thinner or illuminated from behind. These natural structural characteristics, together with the strong geometric crystal development and colour variation, contribute significantly to the specimen’s mineralogical and collector appeal.

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