mineral

Green glassy mineral fragment, possibly chromium-bearing diopside

Uncertain from the photograph; green diopside is CaMgSi₂O₆, but glass or another green mineral cannot be ruled out visually.

AI-generated identification · may be incorrect

Translucent deep green with a vitreous-looking surface and irregular fracture; hardness, cleavage, and crystal structure cannot be reliably determined from the image. Diopside has Mohs hardness 5.5–6.5 and monoclinic crystals.

Identified October 8, 2026More mineral →

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At a glance

Common name: Green glassy mineral fragment, possibly chromium-bearing diopside
Scientific name: Uncertain from the photograph; green diopside is CaMgSi₂O₆, but glass or another green mineral cannot be ruled out visually.
Category: mineral
Identified: October 8, 2026
Method: Standard

AI Estimated Value

About $1–$20 for a small, unidentified rough fragment; confirmed, attractive gem-quality material can be worth more.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

If diopside, it typically forms in calcium- and magnesium-rich metamorphic rocks or mafic igneous rocks; its age depends on the host deposit. The specimen’s origin cannot be established from the image.

Uses & applications

Gem-quality diopside is cut for jewelry; rough fragments are mainly collected as mineral specimens. Identification is needed before assigning an industrial use.

Geological facts

Green appearance alone does not distinguish diopside from minerals such as olivine, fluorite, or glass; a hardness test, specific gravity, and ideally gemological testing help identify it.

Field identification & locations

The irregular shape and lack of visible crystal faces limit field identification; check for natural cleavage and test hardness only with permission. Green diopside occurs in several regions, including Russia, Pakistan, and Canada.