Rainbow Moonstone Obelisk Point Natural White Labradorite Feldspar Crystal Genuine Mineral Specimen with Certificate of Authenticity


£ 21.60

RAINBOW MOONSTONE OBELISK POINT – NATURAL WHITE LABRADORITE FELDSPAR CRYSTAL

This Rainbow Moonstone Obelisk Point is a genuine natural feldspar mineral
specimen, expertly shaped and polished into a four-sided obelisk with a defined apex. The photograph shows the exact piece you will receive, selected for its clarity, colour flash, and balanced proportions. Full sizing details are available in the listing photos. Your crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming it as an authentic natural mineral specimen.

MINERAL TYPE & CRYSTAL STRUCTURE

Rainbow Moonstone is the trade name commonly used for a white variety of labradorite, which belongs to the plagioclase feldspar group. Its chemical composition is typically expressed as (Ca,Na)(Al,Si)₄O₈, and it crystallises in the triclinic crystal system.

The most distinctive feature of rainbow moonstone is its labradorescence, an optical phenomenon that produces flashes of blue or multicoloured light across the surface. This effect is caused by light interacting with microscopic lamellar structures formed by exsolution within the feldspar as it cools slowly in igneous environments. When viewed from different angles, these internal layers refract light to create shifting flashes that can range from electric blue to subtle rainbow tones.

The base colour of rainbow moonstone is usually milky white to translucent, sometimes with faint internal veiling or inclusions typical of feldspar minerals. It measures approximately 6–6.5 on the Mohs hardness scale and displays a vitreous to slightly pearly lustre when polished.

OBELISK SHAPE & CRAFTSMANSHIP

This specimen has been carved into a classic obelisk point, featuring four polished faces that taper upward to a precise termination. The flat base allows for stable upright display.

The obelisk shape enhances the visibility of the stone’s natural flash. As light moves across the polished surfaces, the internal blue sheen becomes more pronounced, creating a dynamic and visually engaging effect. Each face offers a slightly different perspective of the labradorescent glow and internal structure.

Because labradorite’s optical properties depend on internal layering, every obelisk is unique in the intensity and placement of its flash.

GEOLOGICAL FORMATION

Rainbow moonstone forms in igneous rocks such as basalt and pegmatite. During the slow cooling of molten material, sodium- and calcium-rich feldspar components separate into microscopic intergrowths. This separation creates thin internal layers responsible for the optical effect.

Significant sources include India, Madagascar, Sri Lanka, and parts of Africa. It is commonly associated with other feldspars, quartz, and mica within the host rock.

The labradorescent phenomenon is a structural effect rather than surface colouring, making it an inherent and natural feature of the mineral.

PHYSICAL & VISUAL CHARACTERISTICS

Rainbow moonstone ranges from semi-translucent to translucent with a soft white base colour. Under direct light, flashes of blue or multicolour sheen appear across the surface, especially when rotated.

Natural inclusions, faint internal fractures, or cloudy areas are typical of feldspar and contribute to the individuality of each specimen.

TRADITIONAL & CULTURAL ASSOCIATIONS

Moonstone varieties have been valued historically in jewellery and ornamental carvings. In spiritual traditions, rainbow moonstone is sometimes symbolically associated with intuition and lunar themes. These associations are cultural and belief-based rather than scientific.

IDEAL FOR COLLECTORS & DISPLAY

This Rainbow Moonstone Obelisk Point makes an elegant addition to any mineral collection or decorative display. Its luminous flash and refined geometric shape create a striking focal point suitable for shelves, desks, or curated crystal arrangements.

You will receive the exact specimen shown in the photographs, securely packaged and presented with a Certificate of Authenticity lifetime guarantee card. A genuine rainbow moonstone feldspar obelisk, selected for quality, flash, and craftsmanship.