meteorite
Iron Meteorite
Siderite (Iron-Nickel alloy)
AI-generated identification · may be incorrectHardness: 4-5 (Mohs), metallic luster (if cut), dark fusion crust or oxidized brown exterior, regmaglypts (thumb-print indentations), high specific gravity (very heavy), magnetic.
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Physical properties
Hardness: 4-5 (Mohs), metallic luster (if cut), dark fusion crust or oxidized brown exterior, regmaglypts (thumb-print indentations), high specific gravity (very heavy), magnetic.
Formation & geological history
Core remnant of a differentiated asteroid from the early solar system, roughly 4.5 billion years old. It survived atmospheric entry where friction created the melted surface texture.
Uses & applications
Predominantly scientific study and private collecting. High-grade specimens are used to make jewelry (cross-sections showing Widmanstatten patterns).
Geological facts
This specimen shows clear regmaglypts, which are indentations formed by ablation as the rock melted through the atmosphere. The regional coordinates (Visakhapatnam, India) are not known for a major specific iron fall, though individual finds are possible anywhere.
Field identification & locations
Identify by checking for magnetism, high density, and a metallic interior. If found in the field, use a nickel-testing kit for confirmation. Visakhapatnam region geologically features khondalites and charnockites; a meteorite would be a distinct 'extra-terrestrial' find.
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