Description
Bracelet, Lava Rock and Hematite on a Drawstring Cord.
Attractive Bracelet made with Lava Rock and Hematite Beads on a drawstring cord.
You will receive the exact bracelet with beautiful Lava Rock and Hematite shown, or one like it.
A couple of the photos show the bracelet as small and as large as it will go.
Lava rock, also known as volcanic rock, is a type of igneous rock formed from the cooling and solidification of magma erupted from a volcano.
Bracelet with Lava Rock and Hematite.
Key Features:
- Types: Common types include basalt, pumice, and scoria.
- Texture: Can be porous and lightweight (e.g., pumice/scoria) or dense and heavy (e.g., basalt).
- Color: Often black, gray, or reddish due to iron and mineral content.
- Formation: Cools quickly on the Earth’s surface after a volcanic eruption.
- Porosity: Gas bubbles trapped during cooling give it a vesicular (holey) texture.
Uses:
- Landscaping: Popular in gardens and paths for its drainage and aesthetic.
- Construction: Sometimes used as aggregate in concrete or road base.
- Aquariums: Adds surface area for beneficial bacteria.
- Grilling: Lava rocks are used in gas grills to retain heat.
Hematite is a common and important iron ore mineral with the chemical formula Fe₂O₃. It’s one of the most abundant minerals on Earth and has been used by humans for thousands of years.
Basic Properties of Hematite.
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Chemical Formula: Fe₂O₃ (iron(III) oxide)
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Color: Metallic gray, black, or reddish-brown
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Streak: Red to reddish-brown (a key identifying feature)
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Luster: Metallic to earthy
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Hardness: 5.5–6.5 on Mohs scale
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Specific Gravity: ~5.3
🌍 Formation and Occurrence
Hematite forms in a variety of environments:
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As a primary mineral in igneous rocks
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Through oxidation of iron-bearing minerals
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In sedimentary deposits (banded iron formations)
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In hydrothermal veins and as weathering products
Major sources include Brazil, Australia, China, and parts of Africa, including Tanzania.
Bracelet with Lava Rock and Hematite.
🏗️ Uses
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Main source of iron for steel production
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Used as a pigment (red ochre)
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In jewelry and carvings (especially when polished—known as specularite or kidney ore).
🧲 Magnetic Properties
Though hematite is not strongly magnetic, it can become weakly magnetic when heated or if it contains magnetite impurities.
Bracelet with beautiful Lava Rock and Hematite.
