Pale Green Fluorite with Champagne Crystal Growth | Wheal Mary Ann, Cornwall

A beautiful natural pale green fluorite specimen from Wheal Mary Ann, Menheniot, Cornwall, featuring a translucent grey-green crystalline section surrounded by creamy champagne growth, delicate angular formations and warm golden-brown mineral staining.

Weighing 130g, this attractive Cornish mineral specimen combines softly translucent fluorite with contrasting rough crystalline textures. Its broad central crystal face catches the light beautifully, revealing subtle internal structures and natural surface markings.

Specimen Description

This distinctive specimen displays a lovely combination of pale sage-green, soft grey-green, creamy white and champagne-coloured crystalline formations.

The most prominent feature is a broad, translucent grey-green fluorite section extending across the upper and central surface of the specimen.

This crystal face has a softly glass-like appearance, with subtle internal cloudiness, natural surface markings and delicate variations in transparency.

Fine crystalline boundaries and internal fractures create interesting patterns beneath the surface, becoming more noticeable as the specimen is viewed from different angles.

Surrounding the central fluorite are smaller, irregular crystalline formations in shades of cream, pale champagne and warm ivory.

These lighter sections create a beautiful contrast with the cooler grey-green fluorite, giving the specimen a naturally layered appearance.

Along one side, a small recessed area displays golden-orange and rusty-brown mineral staining, adding warmth and depth to the otherwise delicate colour palette.

The staining is consistent in appearance with iron-bearing mineral deposits, although its precise composition has not been independently confirmed.

The lower portion of the specimen is more heavily textured, displaying tightly intergrown crystalline sections, irregular surfaces and small angular formations.

From the side, the specimen reveals a gently tapered profile, with the translucent green fluorite extending towards a narrower crystalline edge.

The contrast between the relatively smooth central crystal face and the rougher surrounding mineral growth gives this specimen considerable visual interest.

Its natural fractures, uneven crystal boundaries and subtle variations in colour are characteristic features of an unpolished mineral specimen.

Measuring 34.2mm × 45.0mm and weighing 130g, this is an attractive example of pale green fluorite attributed to the historic Wheal Mary Ann locality.

About Fluorite

Fluorite (CaF₂) is a naturally occurring calcium fluoride mineral belonging to the halide mineral group.

It crystallises in the cubic, or isometric, crystal system and has a Mohs hardness of 4.

Fluorite is admired by mineral collectors for its remarkable range of natural colours, including green, purple, blue, yellow, pink and colourless varieties.

These colour variations can develop through trace impurities, structural defects and geological conditions during crystal formation.

Green fluorite can range from delicate pale mint and sage tones to deeper emerald and forest-green shades.

Its colour may appear more pronounced in areas of greater transparency or where light passes through thicker crystalline sections.

Fluorite commonly forms within hydrothermal mineral veins, where heated, mineral-rich fluids circulate through fractures and cavities in surrounding rocks.

As these fluids cool or experience changes in pressure and chemical composition, dissolved minerals may crystallise within the available spaces.

Fluorite frequently occurs alongside quartz, calcite, baryte, galena, siderite and other minerals associated with hydrothermal deposits.

One of fluorite's defining physical properties is its perfect octahedral cleavage, meaning it can separate along particular crystallographic planes.

This property can produce distinctive angular surfaces, stepped structures and triangular formations when crystals are naturally fractured.

Fluorite typically possesses a vitreous, or glass-like, lustre, although natural weathering, fine surface textures and mineral coatings can create a softer, frosted appearance.

The combination of translucent crystal faces, natural colour zoning and contrasting mineral growth makes fluorite particularly appealing to collectors of geological specimens.

Wheal Mary Ann & Cornish Mining Heritage

Wheal Mary Ann is a historic mineral locality situated near Menheniot in south-east Cornwall, England.

The Menheniot district forms part of Cornwall's extensive mining landscape and is particularly associated with historic lead and silver mining.

Although Cornwall is internationally recognised for its tin and copper deposits, the south-eastern region also contains important lead-bearing mineral veins.

During the nineteenth century, mining operations around Menheniot extracted lead ores, particularly galena, which could also contain economically valuable silver.

These deposits developed through hydrothermal geological processes, with heated mineral-rich fluids circulating through fractures in the surrounding rocks.

Over time, these fluids deposited a varied assemblage of minerals, including quartz, fluorite, galena, siderite, calcite and other associated species.

Wheal Mary Ann is particularly interesting because historical geological investigations document complex relationships between successive generations of mineral deposition.

The British Geological Survey's geological memoir covering Plymouth and South-East Cornwall identifies fluorite as an important gangue mineral at Wheal Mary Ann.

Gangue minerals occur alongside economically valuable ores but are not necessarily the principal materials being extracted.

The geological memoir describes quartz as a significant vein-filling mineral, with chalcedonic material occurring along portions of the vein walls.

Crystalline quartz, galena and siderite are also documented within the mineral sequence.

Historical geological observations indicate that at least two generations of fluorite mineralisation occurred at Wheal Mary Ann.

This suggests that the mineral veins experienced multiple episodes of deposition under changing geological conditions.

Such processes can produce complex mineral associations, overlapping crystalline formations and variations in crystal development.

Fluorite from historic Cornish localities is particularly appealing to collectors interested in British mineralogy, geological history and the country's mining heritage.

This specimen offers an attractive example of fluorite attributed to Wheal Mary Ann, combining delicate grey-green colouration, champagne crystalline growth and naturally contrasting mineral textures.

Intention & Associated Chakras

Within traditional crystal healing practices, green fluorite is associated with emotional balance, mental clarity, renewal and personal growth.

Its gentle green colouration is traditionally connected with the Heart Chakra, symbolically representing compassion, harmony and emotional wellbeing.

Fluorite as a mineral is also frequently associated with concentration, organisation and maintaining a clear perspective.

• Emotional Balance: Traditionally associated with maintaining calm and emotional harmony.
• Mental Clarity: Symbolically connected with clear thinking and understanding.
• Growth: Green fluorite is traditionally associated with renewal and personal development.
• Focus: Commonly linked with concentration and mental organisation.
• Calm: Associated in crystal traditions with peaceful reflection and a balanced mindset.
• Heart Connection: Symbolically connected with compassion, kindness and emotional openness.

Primary Chakra: Heart Chakra.

Secondary Chakra: Third Eye Chakra.

Primary Intention: Emotional balance, calm and clarity.

These associations reflect traditional spiritual beliefs and are not scientifically established effects of fluorite.

Natural Formation & Symbolism

This specimen retains its natural crystalline formation, displaying a broad translucent fluorite face surrounded by smaller, irregular crystalline sections.

Its pale grey-green colouration creates a soft appearance, while the champagne and creamy-white mineral growth introduces contrasting warmth.

The central fluorite section has a relatively smooth, glass-like surface, with subtle internal structures visible beneath the crystal face.

Along the outer edges, the specimen becomes increasingly textured, displaying angular formations, natural fractures and small intergrown crystals.

Golden-orange mineral staining adds further contrast, highlighting selected areas of the surrounding crystalline material.

Within traditional crystal symbolism, green fluorite is associated with balance, renewal and clarity.

Beyond these symbolic associations, this specimen's principal appeal lies in its delicate natural colouration, translucent crystalline surfaces, contrasting mineral growth and connection to Cornwall's historic mineral-producing landscape.

Specimen Details

• Mineral: Fluorite
• Chemical Formula: CaF₂
• Mineral Group: Halides
• Crystal System: Cubic (Isometric)
• Mohs Hardness: 4
• Supplied Locality Attribution: Wheal Mary Ann
• Location: Menheniot, Cornwall, England
• Weight: 130g
• Dimensions: 34.2mm × 45.0mm
• Formation: Natural fluorite specimen
• Colour: Pale grey-green, sage-green, creamy white and champagne
• Features: Broad translucent crystal face, angular crystalline formations, natural fractures, contrasting cream-coloured mineral growth and golden-brown staining
• Shape: Raw
• Finish: Natural, unpolished
• Quantity: One individual specimen

You will receive the exact specimen photographed. Natural mineral specimens may display irregular edges, fractures, inclusions, uneven surfaces, mineral staining and delicate crystalline formations.

The acrylic display support, wooden plinth and decorative flowers shown in the photographs are not included.

Sources & References

1. British Geological Survey – Plymouth and South-East Cornwall Area, Geological Memoir (Sheet 348). Geological documentation describing the Menheniot mineral veins, Wheal Mary Ann mineralisation and multiple generations of fluorite formation.
   British Geological Survey Geological Memoir
2. British Geological Survey – Silver, Mineral Resources Consultative Committee Mineral Dossier. Geological and historical information concerning the Menheniot lead-silver mining district.
   British Geological Survey Silver Mineral Dossier
3. Mindat – Wheal Mary Ann, Menheniot, Cornwall. Mineral locality database documenting fluorite and associated mineral species.
   Wheal Mary Ann Mineral Locality
4. University of Cambridge – Fluorite Mineral Collection. Mineralogical information concerning fluorite's chemical composition, crystal system, cleavage and physical properties.
   University of Cambridge Fluorite Collection
5. Henwood, W. J. (1871). Observations on Metalliferous Deposits: On the Lead Mines of Menheniot, Lanreath and Saint Pinnock. Transactions of the Royal Geological Society of Cornwall, Volume 8, pages 699–722.