DR Congo

Dioptase — DR Congo · 1.7 cm, 1.9 g

SKU · SX1082
$34.00
Free worldwide shipping on orders of US$38 or more; below US$38: US$5 per parcel
Emerald-green dioptase crystals. Dioptase from DR Congo, 1.7 × 1.4 × 1 cm.
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Mineral
Dioptase
Locality
DR Congo
Dimensions
1.7 cm × 1.4 cm × 1.0 cm
Weight
3 g
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Authenticity guaranteed
Hand-examined + numbered
Worldwide shipping
Insured tracked delivery
Specimen details
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14-day return
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Specimen details

MineralDioptase
LocalityDR Congo
Crystal systemTrigonal
Chemical formulaCuSiO₃·H₂O
Dimensions1.7 cm × 1.4 cm × 1.0 cm
Weight3 g
SpeciesDioptase
ColorGreen

Some details have not been recorded. Ask us about weight, origin or repairs before buying.

About this specimen

DR Congo dioptase at 1.7 cm; a thumbnail, supplied in the display box shown. Dioptase in a saturated emerald green crusts the top of a small matrix piece, the short prisms glassy on every face and the green holding its depth even in the smallest crystals.

Dioptase is a copper silicate with an emerald-green colour so intense it was once mistaken for emerald; the Congo crystals are the standard.

The Katanga Copperbelt of DR Congo is the world's premier source of malachite, dioptase, chrysocolla and cobaltoan calcite.

By size it is thumbnail, 1.7 × 1.4 × 1 cm (0.67 × 0.55 × 0.39 in). Otherwise the piece is sold exactly as photographed.

Delicate crystals: handle by the matrix only.

Every specimen here is photographed and catalogued individually before listing.

  • Mineral: Dioptase
  • Locality: DR Congo
  • Size: 1.7 × 1.4 × 1 cm / 0.67 × 0.55 × 0.39 in
  • Weight: Confirmed before shipping
  • SKU: SX1082

About Dioptase

Dioptase is a silicate mineral recognized among collectors for its crystal form and distribution.

Learn more about Dioptase in our encyclopedia

About DR Congo

The Democratic Republic of the Congo — above all the Katanga Copperbelt — is a world-class source of secondary copper and cobalt minerals.

More specimens from this locality

Frequently asked questions

Will I receive the exact specimen shown?

Yes. Every specimen is a single, one-of-a-kind piece, and the photographs show the exact item you will receive — never a stock photo.

Is this Dioptase natural?

Yes — specimens like this form naturally. As is standard in the trade, some pieces are gently cleaned or trimmed; we photograph the actual specimen and describe its origin and condition conservatively.

How is it packed and shipped?

Orders ship worldwide with fully insured, tracked delivery, carefully packed to protect fragile crystals.

Can I return it?

Yes — there is a 14-day return window.

What collectors say

★★★★★4.98· Website & Etsy reviews
Dioptase — DR Congo · 1.7 cm, 1.9 g
Dioptase — DR Congo · 1.7 cm, 1.9 g
$34.00