Malachite Fiber, Congo 78gr≈
€27.00
Fibrous malachite crystal from Congo with rich green banding, formed in copper-rich environments and valued for its natural structure and mineral composition.
A must-have for every serious collection.
Approximate dimensions: 6.2 x 6cm ≈, weight 78gr ≈
Please note that each piece may vary slightly in size and appearance, reflecting the natural character of minerals/crystals and the individuality of each piece.
Availability: 2 in stock
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What kind of mineral is Malachite?
Malachite is a mineral/crystal composed of copper carbonate hydroxide Cu2CO3(OH)2Cu₂CO₃(OH)₂. It typically forms in the oxidation zones of copper ore deposits, where chemical reactions transform primary copper minerals into secondary minerals like malachite.
This specimens display a fibrous structure, made up of fine, tightly packed crystal growth. In many cases, this structure produces a silky or chatoyant visual effect, especially when polished.
How does Malachite take its green color?
The green color of malachite is directly linked to its copper content. Shades can vary from lighter green to deep, насыщенный tones depending on the concentration of copper and the environmental conditions during formation.
Fibrous malachite often shows subtle banding or layered growth patterns. These patterns reflect changes in mineral-rich solutions over time, making each piece naturally unique.
How Does Malachite Form?
Malachite forms through the weathering and oxidation of primary copper sulfide minerals such as chalcopyrite or bornite. When exposed to oxygen, water, and carbon dioxide, copper ions are released and react with carbonate ions.
This process leads to the gradual precipitation of malachite, often creating botryoidal, layered, or fibrous structures. The formation can take place over long geological periods.
What is Malachite Used For?
Many people ask what malachite is used for. Historically, it has been an important secondary copper ore and a source of green pigment in paints and artistic applications.
Today, malachite is primarily used as a decorative mineral, in carvings, and as a collectible specimen due to its distinctive appearance and mineral composition.
Origin: Congo
The Democratic Republic of Congo is one of the most important sources of high-quality malachite. Specimens from this region are known for their strong color saturation and well-defined structures, particularly in fibrous formations.
Care and Handling
With a Mohs hardness of 3.5–4, malachite is relatively soft and can be sensitive to scratches and chemicals. It is best suited for display rather than frequent handling
