Description
478g A-Grade Kambaba Jasper Sphere – Natural Mineral from Madagascar
This beautiful 478g A-Grade Kambaba Jasper Sphere is an exceptional, hand-selected mineral specimen sourced from Madagascar. The photos show the exact sphere you will receive, with a 1cm scale cube provided for accurate sizing. As with all our pieces, this crystal is a 100% genuine natural specimen and includes a Certificate of Authenticity. Highly polished into a perfect sphere, it makes a stunning display item for collectors, crystal enthusiasts, interior décor, and anyone who appreciates distinctive natural minerals.
Mineral Species Overview: Kambaba Jasper
Kambaba Jasper—sometimes called Kambaba Stone or Crocodile Jasper—is a striking orbicular variety of fossilised stromatolitic material composed primarily of ancient algae (cyanobacteria) preserved in jasper and volcanic sediment. Its origins make it one of the oldest known mineral materials on Earth, with some deposits dating back over 2 billion years.
The deep green and black swirling patterns and orbs are typical features of Kambaba Jasper and are created by mineral-rich sediments interacting with ancient microbial life. This combination of fossil and mineral gives it a unique appearance and geological significance.
Geological Origin: Madagascar’s Precambrian Terranes
This specimen comes from Madagascar, a region known for its rich Precambrian geological formations. Kambaba Jasper forms within ancient sedimentary and volcanic deposits, where mineral silica replaces the original stromatolitic structures over immense periods of geological time.
These stromatolites—layered colonies of cyanobacteria—were among the earliest organisms to contribute to Earth’s oxygenation. Their fossilised remains create the dark circular or orb-like patterns seen within the stone.
Appearance and Colour Characteristics
This 478g sphere exhibits the classic, sought-after features of A-grade Madagascan Kambaba Jasper:
- Deep forest-green base colour, enhanced by dark black orbs and swirling patches
- Beautiful orbicular patterns, created by fossilised stromatolite colonies
- Smooth, high-quality polish bringing out its natural depth and contrast
- Opaque appearance, consistent with high-grade jasper
- Fine variation across the surface, making each sphere completely unique
The depth of colour and clarity of the orbs are a hallmark of better-quality material, making this sphere especially desirable.
Mineralogical Composition and Properties
Kambaba Jasper is predominantly a silicate-based mineral with the following characteristics:
- Mineral Type: Orbicular jasper with fossil stromatolite content
- Crystal System: Cryptocrystalline (microcrystalline quartz)
- Hardness: Approximately 6.5–7 on the Mohs scale
- Lustre: Vitreous to waxy when polished
- Transparency: Opaque
- Associated Minerals: May include chalcedony, quartz, and mineralised sediment
Its durability and fine-grained structure allow it to take an excellent polish, which enhances its natural orbs and swirls.
Formation and Geological Significance
The formation of Kambaba Jasper reflects a rare combination of ancient biological activity and geological processes:
- Stromatolitic layering forms as cyanobacteria trap and bind sediment
- Silicification over geological time transforms these biological structures into jasper
- Tectonic and volcanic processes contribute to the mineral distribution in Madagascar
- Polishing reveals the distinctive orbicular patterns preserved within the stone
This makes each piece not only visually appealing but also a window into early Earth history.
Display Quality and Aesthetic Benefits
This A-grade Kambaba Jasper sphere is ideal for:
- Home décor and interior design accents
- Natural history or geological collections
- Energy and crystal display arrangements
- Desk or shelf décor with a natural and grounding aesthetic
- Gifts for mineral collectors and crystal enthusiasts
The polished sphere form allows the unique patterns to be admired from all angles, creating a visually rich and tactile piece suitable for any display environment.
A Carefully Chosen Natural Specimen
Your 478g sphere has been selected for its aesthetic appeal, quality polish, and well-defined orbicular patterning. As always, the specimen you see in the photos is the exact item you will receive, ensuring complete transparency and authenticity.
All of our Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity.
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