O
ObsidianHunter46
Novice
0 rep
QUESTION
Help IDing this black heavy specimen from New Mexico
Jul 19, 2026 · 22 views
Found this at gem show in Tucson. It is heavy for its size, black to dark gray, slightly metallic luster. Strong magnetic pull. I am thinking magnetite but the specific gravity seems high. Any ideas? Happy to provide more details or try a streak test.
2 Replies
B
BasaltCracker64
Novice
Jul 27, 2026
The specific gravity being high points toward something denser than malachite. Try weighing it in water.
G
GraniteNomad63
Novice
Jul 28, 2026
Try a 10x loupe on the interior if you can get a fresh break - chondrules confirm it instantly.