Blue-green dioptase crystals on quartz matrix, Namibia

Dioptase Mineral Specimens from Namibia

Dioptase is a copper silicate prized by collectors for its intense emerald-green to bluish-green colour and bright, glassy crystals. Our dioptase mineral specimens come from Namibia.

It forms short prismatic crystals with rhombohedral terminations, often as sparkling crusts and clusters on quartz, calcite or host rock, sometimes with chrysocolla or malachite. At about 5 on the Mohs scale and with perfect cleavage, dioptase is a collector’s specimen rather than a stone for daily wear.

Some people also keep dioptase for meditation. That is a personal tradition, not a health claim.
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🔎 Collector Notes: Dioptase Mineral Specimens from Namibia

1. Locality

  • Mineral specimens from Namibia.

2. Habit and colour

  • Emerald-green to bluish-green crystals, transparent to translucent, with a glassy lustre.
  • Usually short prisms with rhombohedral terminations, grown as crusts or clusters in cavities and on matrix.

3. Associated minerals

  • Quartz and calcite are common companions; some pieces also show chrysocolla or malachite.

4. What to look for

  • Sharp, lustrous crystals, deep even colour and good contrast with the matrix.
  • Check the close-up photos for chipped crystal tips.

5. Care

  • Handle by the matrix, not the crystals or crusts.
  • Keep away from knocks, ultrasonic cleaners, acids and harsh chemicals. Dust with a soft brush.
  • Dioptase has perfect cleavage, so avoid pressure on the crystals.

6. What you receive

  • The exact specimen shown in the photos, with its measured weight and size.
  • Each listing names the species, associated minerals and locality.

In crystal traditions dioptase is linked with the heart. This is a cultural note, not a health claim.