$213Median
2Sold (12 mo)
$275Last sale
Chromium specimens for sale
15 for sale · $350–$8,000 USD
32 in the gallery
Chromium is a metallic element that forms common oxides and alloys rather than classic single-crystal minerals. On specimens, chromium typically presents a steel-gray to silvery metallic luster with a relatively high density and a hardness near 5 on the Mohs scale. Crystals are seldom the primary form in mineral collections, but chromium-rich minerals or compounds can occur as inclusions or secondary phases in layered rock contexts, sometimes displaying a distinct metallic sheen when freshly broken.
- Formula
- Cr
- Rarity
- Ultra Rare
- Stability
- Stable
- Collector interest
- Niche Interest
- Classification notes
- Native element; metals and intermetallic alloys
Key characteristics
- Crystal system
- isometric
- Mohs hardness
- 8.5
- Specific gravity
- 7.14–7.2
- Luster
- metallic
- Transparency
- opaque
- Color
- gray, black
- Streak
- gray
- Crystal habit
- granular
- Micro-mount only
Buy Chromium specimens
View all 15Where Chromium is found
Top localities
- Jeffrey Mine5 specimens
- Daoping Mine3 specimens
- Dassu3 specimens
- Jos Plateau3 specimens
- Canada1 specimen
- Aosta Valley1 specimen
- Commander Mine1 specimen
- Merelani Hills1 specimen
- Mong Hsu1 specimen
About Chromium
Notable specimens are associated with ultramafic or alkaline environments where chromium-bearing minerals can crystallize under reducing conditions, with significant deposits reported in regions such as Nigeria, Pakistan, Tanzania, Canada, and China. Collectors value material that shows clean, bright metallic surfaces and robust, undisturbed crystal or inclusion-rich samples that reveal chromium’s characteristic luster and color in hand-specimen viewing. The appeal lies in the elemental storyChromium provides within mineral matrices and its role in metallurgy, making well-preserved pieces interesting additions to mature mineral cabinets.
