Description
Genuine Pure Black Magnetite – Arendal, Aust-Agder, Norway
This listing is for a genuine Pure Black Magnetite mineral specimen from Arendal, Aust-Agder, Norway, sized approximately 35–60mm. The photograph shown represents an example of the actual specimen you will receive. Each piece is carefully selected for its deep black colour, strong metallic character, and collector quality.
Your specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming it is a 100% genuine natural mineral. Please refer to the photographs for full sizing and scale.
Mineral Species & Chemical Composition
Magnetite is an iron oxide mineral with the chemical formula Fe₃O₄. It belongs to the oxide mineral group and crystallises in the isometric (cubic) crystal system. It is one of the most important and widely studied iron minerals due to its abundance, magnetic properties, and geological significance.
Key mineral data:
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Mineral Species: Magnetite
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Chemical Formula: Fe₃O₄
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Mineral Group: Oxide
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Crystal System: Isometric (Cubic)
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Hardness: 5.5–6.5 on the Mohs scale
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Lustre: Metallic to submetallic
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Colour: Deep black to iron-grey
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Transparency: Opaque
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Streak: Black
Magnetite is well known for its natural magnetic behaviour, a result of the arrangement of iron ions within its crystal lattice.
Arendal Locality & Geological Context
Arendal, in Aust-Agder, Norway, is a historically significant mineral locality known for complex Precambrian geological formations. The region features ancient metamorphic and igneous rocks that host a variety of iron oxide and silicate minerals.
Magnetite from Arendal typically forms within:
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Metamorphic iron-rich zones
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Skarn environments
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Pegmatitic and igneous intrusions
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High-grade metamorphic terrains
These geological conditions allow well-developed magnetite crystals and massive formations to form over immense geological timescales.
Associated minerals from the region may include:
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Quartz
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Feldspar
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Amphibole
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Garnet
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Other iron oxides such as hematite
Norwegian magnetite is respected among collectors for its dense, pure appearance and strong mineral character.
Appearance & Crystal Habit
This pure black magnetite specimen displays the classic characteristics of high-quality iron oxide:
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Rich, uniform black colouring
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Metallic to slightly reflective surfaces
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Dense, weighty feel relative to size
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Natural crystalline or massive structure
Magnetite commonly forms cubic or octahedral crystals, though some specimens appear in compact or granular aggregates depending on formation conditions.
The “pure black” description reflects its deep, consistent colour without significant alteration or weathering tones.
Each specimen is natural and untreated, preserving its authentic geological features.
Size & Collector Appeal (35–60mm)
At approximately 35–60mm, this is a substantial display specimen suitable for:
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Mineral and crystal collections
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Iron oxide reference collections
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Educational geology displays
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Cabinet specimen arrangements
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Gifts for serious mineral enthusiasts
Its bold black appearance makes it visually striking when displayed alongside lighter-coloured minerals.
Scientific & Historical Importance
Magnetite plays a crucial role in geology and Earth sciences. It is used in paleomagnetic research to study the historical orientation of Earth’s magnetic field, as magnetite grains can record magnetic alignment at the time of rock formation.
Historically, naturally magnetised magnetite (lodestone) was used in early navigation compasses, highlighting its long-standing scientific significance.
In spiritual traditions, magnetite is sometimes traditionally associated with attraction symbolism; however, this listing presents it strictly as a natural mineral specimen valued for geological and collector interest.
Authenticity & Product Details
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Genuine Pure Black Magnetite mineral specimen
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Locality: Arendal, Aust-Agder, Norway
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Size Range: Approximately 35–60mm
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Natural iron oxide crystal
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Carefully selected collector piece
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Includes Certificate of Authenticity lifetime guarantee generic card
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Photo shows an example of the actual specimen you will receive
A classic Norwegian magnetite specimen featuring deep black colour and strong mineral character, ideal for collectors of iron oxides and European mineral localities.
