
mineral
Likely metallic mineral specimens
Probably native iron or iron oxide/hydroxide material; exact identification requires testing
AI-generated identification · may be incorrectSmall dark gray to brown, irregular masses with metallic to dull luster and possible botryoidal texture. Hardness likely about 4–6 Mohs; crystal structure and specific gravity cannot be determined reliably from the image.
Identified More mineral →
Explore Likely metallic mineral specimens in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Small dark gray to brown, irregular masses with metallic to dull luster and possible botryoidal texture. Hardness likely about 4–6 Mohs; crystal structure and specific gravity cannot be determined reliably from the image.
Formation & geological history
Could represent weathered iron-rich mineralization, such as hematite, goethite, or magnetite, formed in hydrothermal, sedimentary, or weathering environments; age is indeterminate.
Uses & applications
Common iron ores are used for steel production, pigments, and mineral collecting; these fragments have little commercial value unless unusually crystalline or confirmed meteoritic.
Geological facts
The central piece appears fibrous or botryoidal, a form commonly seen in goethite or hematite. A metallic appearance alone does not establish that a specimen is a meteorite or native metal.
Field identification & locations
Test with a strong magnet, streak on unglazed porcelain, and inspect specific gravity; hematite gives a red-brown streak, magnetite a black streak and strong magnetic response, while goethite commonly gives a yellow-brown streak. Common worldwide, especially in iron-rich soils and ore deposits.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous