Bloodstone Merkaba Star 10-20mm Green Red Jasper Chalcedony Crystal Polished Sacred Geometry Gemstone Specimen Gift with Certificate

Product Overview
This Bloodstone Merkaba star is a genuine natural chalcedony specimen, carefully carved and polished into a precise geometric form measuring approximately 10–20mm. Displaying deep green tones with distinctive red inclusions, this piece highlights the natural beauty of Bloodstone while showcasing detailed craftsmanship. Supplied with a Certificate of Authenticity lifetime guarantee card, the listing photograph shows an example of the specimen you will receive. Each piece is unique, with natural variations in pattern and colour. Please refer to the images for full sizing and scale.

Mineral Identification and Composition
Bloodstone, also known as heliotrope, is a variety of chalcedony, a microcrystalline form of quartz composed of silicon dioxide (SiO₂). It is classified within the quartz family and is characterised by its dark green base colour with contrasting red spots or patches.

The green colour is typically due to chlorite or amphibole inclusions, while the red markings are caused by iron oxide, most commonly hematite. These natural inclusions create the distinctive appearance that defines Bloodstone.

Crystal Structure and Physical Properties
As a cryptocrystalline quartz, Bloodstone does not display visible individual crystals but instead consists of tightly intergrown microscopic quartz fibres. This structure gives the material its durability and smooth texture when polished.

Typical properties include:

• Colour: Dark green with red, orange, or brown spotting

• Lustre: Waxy to vitreous when polished

• Transparency: Opaque to slightly translucent at thin edges

• Hardness: Approximately 6.5–7 on the Mohs scale

The polished Merkaba form enhances the contrast between the green matrix and red inclusions, allowing the natural patterns to be seen from multiple angles.

Geological Formation and Occurrence
Bloodstone forms in sedimentary and low-grade metamorphic environments where silica-rich solutions deposit chalcedony within rock cavities or fractures. The presence of iron and other minerals during formation leads to the characteristic colouring and inclusions.

Significant deposits of Bloodstone are found in regions such as India, Brazil, Australia, and parts of Africa. The material used for carving is selected for its strong colour contrast and structural integrity.

Form and Craftsmanship
This specimen has been shaped into a Merkaba star, a geometric form consisting of two interlocking tetrahedra. The precise symmetry and sharp edges require skilled lapidary work to achieve a balanced and refined finish.

The polishing process enhances the natural surface, bringing out the depth of colour and clarity of the inclusions while maintaining the stone’s integrity. Each piece is individually crafted, resulting in subtle differences in pattern and tone.

Appearance and Natural Variation
Each Bloodstone Merkaba star is unique, with variations in the distribution, size, and intensity of red inclusions within the green matrix. Some pieces may feature bold, prominent red spots, while others display more subtle patterning.

Natural inclusions, slight tonal variations, and internal textures are part of the stone’s geological formation and contribute to its individuality. These features may appear more pronounced under different lighting conditions.

Uses and Collecting Appeal
Bloodstone Merkaba stars are popular among mineral collectors, gemstone enthusiasts, and those interested in carved geometric forms. Their compact size and intricate design make them suitable for display, gifting, or inclusion in curated collections.

In cultural and non-scientific contexts, Bloodstone is traditionally associated with strength and endurance, while the Merkaba shape is linked to sacred geometry concepts. These associations are based on historical and cultural traditions rather than scientific properties.

Authenticity and Presentation

• Genuine Bloodstone (Chalcedony Quartz) specimen

• Merkaba star carved form, approximately 10–20mm

• Smooth polished finish

• Supplied with a Certificate of Authenticity lifetime guarantee card

• Listing image shows an example of the specimen you will receive

This piece offers a combination of natural geological formation and detailed craftsmanship, presenting Bloodstone in a distinctive and collectible geometric form.