Pale Green & Honey Fluorite | Wheal Mary Ann, Cornwall

A beautiful natural Cornish fluorite specimen displaying a delicate combination of translucent sage-green, soft grey-blue and warm honey-yellow colouration, accented by striking rusty-orange mineral staining. Originating from Wheal Mary Ann, Menheniot, Cornwall, this 115g specimen features substantial angular crystal formations, intricate internal textures and naturally weathered surfaces.

With its distinctive colour transitions, rugged crystalline structure and historic Cornish mining provenance, this specimen is a wonderful addition to any collection of British minerals, natural fluorite or geological treasures.

Specimen Description

This attractive fluorite specimen has a compact, irregularly angular formation, with broad crystalline faces and a gently sloping upper ridge.

The principal surface displays beautiful pale green and muted grey-blue tones, transitioning into translucent honey-yellow and golden champagne colouring towards one side.

These delicate colours are complemented by vivid rusty-orange and earthy brown mineral staining, particularly concentrated along the lower edges, natural fractures and sections of the exposed crystal faces.

Unlike specimens consisting of numerous small, individually developed cubes, this piece features larger intergrown crystalline masses with prominent angular surfaces and visible internal structures.

Several areas exhibit a soft vitreous lustre, allowing light to penetrate the translucent fluorite and reveal cloudy inclusions, subtle colour zoning and overlapping crystalline textures.

The close-up photograph highlights the complexity of the mineral's natural formation, including intersecting crystal planes, internal fractures and delicate variations in transparency.

Some sections appear almost colourless or pale icy blue, while neighbouring areas display soft green and warmer golden tones.

These changes in colour and transparency give the specimen an appealing layered appearance, particularly when examined under different lighting conditions.

One of its most distinctive features is the extensive rusty-orange staining, which contrasts beautifully against the cooler green and blue-grey fluorite.

This surface alteration is visually consistent with iron-bearing mineral deposits, although the precise composition has not been independently confirmed.

From the reverse, the specimen reveals additional translucent crystalline surfaces, with a more concentrated band of orange-brown staining running through the exposed mineral structure.

The side profile displays a noticeably angular formation, with naturally fractured faces, uneven crystal boundaries and further areas of pale honey-yellow colouration.

The specimen retains its natural, unpolished finish, preserving the irregular surfaces, mineral staining and internal features associated with its geological formation.

Weighing 115g and measuring 45.7mm × 53.4mm, this is a compact but characterful example of Cornish fluorite, particularly appealing for its subtle colours and contrasting mineral textures.

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 widely admired for its remarkable variety of colours, including green, purple, blue, yellow, pink and colourless forms.

Some specimens display multiple colours within the same crystal or mineral formation, creating attractive combinations of transparent, translucent and more opaque material.

The mineral's most recognisable crystal habit is cubic, although octahedral and more complex crystal forms are also known.

Fluorite possesses perfect octahedral cleavage, allowing it to separate along specific crystallographic planes.

These cleavage surfaces can create sharply angular formations and distinctive geometric patterns within naturally fractured specimens.

Its typical lustre is vitreous, or glass-like, although weathered surfaces may appear more frosted or matte.

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

As the temperature, pressure and chemical composition of these fluids change, dissolved minerals can precipitate and gradually form crystalline deposits.

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

Repeated episodes of mineral deposition may produce overlapping crystal growth, internal colour variations and complex relationships between different mineral species.

The combination of translucent fluorite, internal fractures and orange-brown mineral staining visible in this specimen reflects the varied textures that can develop within these geological environments.

Some fluorite specimens exhibit fluorescence under ultraviolet light, although this property varies considerably and has not been confirmed for this individual piece.

Wheal Mary Ann & Cornish Geological Heritage

Wheal Mary Ann, near Menheniot in south-east Cornwall, is a historically significant mineral locality associated with the region's lead and silver mining industry.

Although Cornwall is internationally recognised for its tin and copper mining heritage, the Menheniot district also became important for its lead and silver-bearing mineral veins.

These deposits were worked during the nineteenth century, contributing to Cornwall's extensive mining economy and geological reputation.

The Menheniot mineral veins occur within Devonian sedimentary rocks and are associated with hydrothermal mineralisation.

Historical geological records document a varied mineral assemblage in the district, including galena, fluorite, quartz, chalcedony, siderite, calcite and baryte.

Galena, a lead sulphide mineral, was economically important because certain deposits contained valuable quantities of silver.

Wheal Mary Ann formed part of this wider mineral-producing district, where underground workings followed mineralised veins through the surrounding rock formations.

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

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

The geological memoir describes quartz as a major vein-filling mineral at Wheal Mary Ann, with chalcedonic material occurring along the vein walls.

Crystalline quartz, galena and siderite are also recorded within the mineral sequence, alongside fluorite.

Of particular geological interest, the locality is associated with evidence suggesting at least two generations of fluorite mineralisation.

This indicates a complex geological history involving repeated episodes of mineral deposition and changing hydrothermal conditions.

Historical geological studies describe fluorite occurring both before and after particular stages of galena deposition.

These relationships demonstrate how mineral veins can develop through multiple geological events rather than a single period of crystallisation.

The wider Menheniot district remains an important area of interest for collectors of British minerals and historic Cornish mining specimens.

Specimens attributed to Wheal Mary Ann provide a tangible connection to Cornwall's industrial heritage and the geological processes responsible for its distinctive mineral deposits.

Intention & Associated Chakras

Within traditional crystal healing practices, fluorite is associated with mental clarity, emotional balance, concentration and peaceful reflection.

Green fluorite is particularly linked with emotional harmony and the Heart Chakra, while fluorite more generally is associated with the Third Eye Chakra and clearer thinking.

• Calm: Traditionally associated with emotional balance, peaceful reflection and inner tranquillity.
• Mental Clarity: Symbolically connected with concentration, organisation and clearer thinking.
• Emotional Balance: Associated with maintaining perspective and processing emotions.
• Focus: Traditionally linked with concentration, learning and mental organisation.
• Spiritual Growth: Associated with self-awareness, reflection and personal understanding.

Associated Chakras: Heart Chakra and Third Eye Chakra.

Primary Intention: Calm.

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

Natural Formation & Symbolism

This specimen retains its natural crystalline structure, irregular edges, angular mineral faces and areas of earthy surface staining.

The pale green and grey-blue fluorite provides a gentle contrast against the warmer honey-yellow sections and rich rusty-orange deposits.

Its larger crystalline surfaces reveal subtle internal structures, while the naturally fractured areas create additional depth and texture.

Viewed from different angles, the specimen displays changing levels of translucency, with some areas appearing softly cloudy and others revealing more transparent mineral sections.

Within traditional crystal symbolism, green fluorite is associated with emotional harmony, renewal and peaceful reflection.

The soft yellow tones are sometimes symbolically connected with optimism and clarity, although these associations are cultural rather than scientifically demonstrated.

Beyond its symbolic interpretations, this specimen is particularly appealing for its natural geometric formations, delicate colour transitions and connection to Cornwall's historic mining 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: 115g
• Dimensions: 45.7mm × 53.4mm
• Formation: Natural fluorite specimen with intergrown crystalline material
• Colour: Pale sage-green, grey-blue, honey-yellow, golden champagne and rusty orange
• Features: Angular crystal faces, translucent sections, internal fractures, colour variation, natural mineral staining and irregular crystalline surfaces
• 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, surface alteration, uneven textures and delicate exposed crystal formations.

Display supports, acrylic stand, 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 recording fluorite and associated mineral species, with historical references.
   Wheal Mary Ann Mineral Locality
4. University of Cambridge – Fluorite Mineral Collection. Mineralogical reference covering fluorite's chemical composition, cubic 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.