Rock Identifier
Stainless Steel Spoon (Iron-Chromium Alloy (Fe + Cr + Ni)) — mineral-based human-made alloy
mineral-based human-made alloy

Stainless Steel Spoon

Iron-Chromium Alloy (Fe + Cr + Ni)

AI-generated identification · may be incorrect

Hardness: 5.5-6.5 (Mohs scale), Color: silver-grey, Luster: metallic, Crystal structure: face-centered cubic/body-centered cubic, Non-porous

Hardness
5
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Physical properties

Hardness: 5.5-6.5 (Mohs scale), Color: silver-grey, Luster: metallic, Crystal structure: face-centered cubic/body-centered cubic, Non-porous

Formation & geological history

Manufactured through the smelting and alloying of iron ore, chromite, and nickel. These minerals were formed in the Earth's crust billions of years ago through magmatic processes.

Uses & applications

Kitchenware, cutlery, and culinary tools due to its corrosion resistance and durability.

Geological facts

Stainless steel was first discovered in 1913 by Harry Brearley. It contains at least 10.5% chromium which forms a protective oxide layer that prevents rusting.

Field identification & locations

Identified by its distinctive reflective metallic surface and standard utensil shape. Found in household environments rather than natural geological outcrops.

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N/A (man-made object)

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Unidentified gray metallic object

Not determinable from the image; likely a metal screw or manufactured fastener rather than geological material

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Gold ring with a dark, possibly gemstone setting

Gold alloy; the dark setting is not identifiable from the image

gemstone
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Likely gold-colored metal ring with a possible gemstone

Uncertain; possibly gold alloy (Au) with a small quartz or glass-like setting

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Gold (Au), likely a coin set in a gold-colored metal mount

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