Blue fluorite - Hunan, China | Ref. 537

Fluorite (also called fluorine) is a mineral appreciated both by enthusiasts and beginners in collecting. It is composed of calcium fluoride (CaF₂) and appears here in a beautiful blue hue, highly sought after by collectors. Its cubic crystals, typical of fluorite, rest on a matrix (the host rock) that highlights the whole specimen.

Blue fluorite from Hunan, China, is known for the purity of its color and the sharpness of its crystals. This piece immediately catches the eye and perfectly illustrates the richness of Chinese deposits. Accessible, educational, and aesthetic, this specimen will easily find its place in a mineral collection or as an original decorative object.

From a mineralogical point of view, fluorite is distinguished by its vitreous luster and its perfect cleavage (it can break into regular shapes). Relatively soft (4 on the Mohs scale), it requires gentle handling. A little curiosity: some fluorites may show fluorescence under UV light (a colored glow in the dark).

If you are looking for the purchase of an authentic blue fluorite, or more broadly the purchase of collectible minerals, this specimen from Hunan will meet your expectations. It combines educational value and visual appeal, a combination that attracts both new collectors and experienced enthusiasts.

✅ Mineralogical Information

- Name: Fluorite (fluorine)

- Chemical formula: CaF₂

- Luster: Vitreous (glass-like appearance)

- Color: Variable (often purple, green, blue, yellow, or colorless)

- Hardness (Mohs): 4 (relatively soft mineral)

- Density: ≈ 3.18

Little story / anecdote

The word “fluorescence” actually comes from fluorite: in the 19th century, physicist G. G. Stokes (1852) popularized this term after observing the particular glow of some fluorite samples. The name “fluorite” derives from the Latin fluere (“to flow”), as it was used as a flux to facilitate the fusion of ores in metallurgy.

Care instructions

Avoid shocks and acidic products.

Clean gently (air blower, soft brush).

No hot water or prolonged soaking.