A natural Lazurite specimen showing deep ultramarine-blue colour typical of the sodalite group. Compact and well-shaped for trays, drawers or macro photography, this 15.66 g piece is an excellent reference sample for a teaching or hobby collection.
Why it’s interesting
Classic blue: intense colour from sulfur-bearing radicals (S− species) distinctive to lazurite.
Collector reference: the primary blue component of lapis lazuli, useful for side-by-side comparison with calcite/pyrite associates.
Display-friendly size: light, compact piece that fits standard mineral drawers and photo setups.
Details
Mineral: Lazurite (sodalite-group feldspathoid)
Form: Natural specimen (granular/massive)
Weight: approx. 15.66 g
Origin: Not specified
Listing: 1 × specimen (as pictured)
Mineralogical notes
Colour: deep to ultramarine blue; may show patchy lighter zones.
Lustre: vitreous to dull on granular surfaces; streak: light blue.
Hardness: Mohs ~5–5.5; cleavage: poor/indistinct; fracture: uneven to conchoidal.
Associates: commonly occurs with calcite and pyrite in marbles (not guaranteed in this piece).
Suggested uses
Reference sample for identifying lapis lazuli vs. lazurite-rich material.
Cabinet/drawer display, study collection or macro/hand-lens photography.
Teaching aid for feldspathoid minerals and colour-causing defects in minerals.
Care
Handle gently (Mohs ~5–5.5). Avoid abrasives and ultrasonic cleaners.
Do not soak; avoid acids and harsh chemicals. Wipe with a dry, soft brush/cloth.
Store away from prolonged moisture; separate from harder minerals to prevent scratching.
Note: Natural mineral specimens show inherent variations, contact marks and matrix features—each piece is unique.
