Selenite Crystal Charging Block 20cm Natural Gypsum Mineral Polished Display Specimen Authentic

Natural Selenite Crystal Charging Block – 20cm

This genuine Selenite Crystal Charging Block measures approximately 20 cm in length and is crafted from natural selenite, a crystalline variety of the mineral gypsum. Known for its distinctive silky sheen and luminous white appearance, selenite is a popular mineral specimen for collectors, decorative displays, and crystal collections.

The block has been shaped and polished to create a smooth surface while preserving the natural fibrous structure typical of selenite. The photographs in this listing show the exact specimen you will receive, allowing buyers to clearly see the crystal’s texture, colour, and finish before purchase. Full sizing details can be viewed in the listing photos.

This crystal is a genuine natural mineral specimen and includes a Certificate of Authenticity lifetime guarantee generic card, confirming the authenticity of the material.

Mineral Species and Geological Classification

Selenite is a crystalline form of gypsum, a sulfate mineral composed of calcium sulfate dihydrate. Gypsum occurs widely in sedimentary environments and forms some of the most visually striking evaporite minerals.

Scientific mineral characteristics include:

• Mineral Name: Gypsum

• Variety: Selenite

• Chemical Formula: CaSO₄·2H₂O

• Mineral Class: Sulfates

• Crystal System: Monoclinic

• Hardness: Approximately 2 on the Mohs scale

• Lustre: Vitreous to silky or pearly

• Transparency: Transparent to translucent

• Typical Colour: Colourless to white, sometimes pale grey or cream

The name “selenite” derives from the Greek word “selene,” meaning moon, referencing the mineral’s luminous appearance and reflective surface.

Crystal Structure and Physical Appearance

Selenite forms elongated crystals with a fibrous or striated internal structure that produces a soft reflective sheen across the surface. When polished into blocks or slabs, these fibres create a subtle chatoyant effect where light appears to move across the surface of the mineral.

Natural characteristics of selenite may include:

• Parallel fibrous crystal structure

• Soft pearly lustre

• Translucent white appearance

• Subtle internal banding or lines formed during growth

Because gypsum is a relatively soft mineral, it can be shaped and polished into decorative forms such as plates, slabs, towers, and blocks. The polished surface of this block highlights the natural internal structure of the crystal.

Geological Formation and Depositional Environment

Gypsum forms in evaporite sedimentary environments, where mineral-rich water bodies gradually evaporate and leave behind crystallised mineral deposits. These environments commonly include shallow inland seas, salt lakes, and evaporating lagoons.

As water evaporates, dissolved calcium and sulfate ions combine to form gypsum crystals. Over long geological periods, these crystals accumulate in sedimentary layers and may grow into large crystalline masses.

Major gypsum deposits occur worldwide and are often associated with:

• Halite (rock salt)

• Anhydrite

• Calcite

• Clay minerals

• Dolomite

The formation of selenite crystals typically occurs when gypsum crystals grow slowly in open spaces within sedimentary rock layers or cavities, allowing large transparent crystals to develop.

Polished Block Form and Display Use

This specimen has been carefully shaped into a rectangular polished block approximately 20 cm in length, providing a flat surface suitable for display or placement of small mineral specimens. The smooth surface enhances the mineral’s reflective sheen and makes the natural crystal structure more visible.

Collectors and enthusiasts appreciate selenite blocks for several reasons:

• Smooth polished surface suitable for decorative display

• Distinctive luminous white crystal appearance

• Visible natural fibrous crystal structure

• Large surface area for showcasing the mineral’s texture

The block format also makes it suitable for use as a base in mineral displays, decorative arrangements, or geological collections.

Cultural and Traditional Associations

In various traditions, selenite has been traditionally associated with clarity and symbolic purity in decorative and spiritual contexts. Many people display selenite blocks or plates alongside other mineral specimens due to these cultural associations and the stone’s distinctive appearance.

Such interpretations are based on historical symbolism and personal traditions rather than scientific or medical claims.

Authentic Mineral Specimen

This piece is a genuine natural selenite crystal block, selected for its quality, size, and natural mineral structure. The photographs show the exact specimen you will receive, ensuring transparency for collectors and buyers.

Key features include:

• Natural Selenite crystal block

• Mineral species: Gypsum (CaSO₄·2H₂O)

• Polished rectangular display form

• Approximate length: 20 cm

• Translucent white sulfate mineral

• Distinctive fibrous crystal structure

• Exact specimen shown in listing photographs

• Full sizing visible in listing images

• Includes Certificate of Authenticity lifetime guarantee generic card

This large selenite crystal block represents an impressive example of evaporite mineral formation within sedimentary geological environments, making it an attractive addition to mineral collections, decorative stone displays, or geological study sets.