Namibia

Dioptase Crystal Cluster – Vibrant Green – Tsumeb Mine, Namibia

SKU · 1051
$216.00 $240.00
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This specimen of Dioptase features vibrant green crystals, a hallmark of material from the historic Tsumeb Mine in Namibia. The intense color and well-formed crystals make this a classic and desirable piece for any mineral collector. Dioptase from Tsumeb is increasingly rare, making this a valuable addition to any collection.

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Specimen details

MineralDioptase
LocalityNamibia
Crystal systemHexagonal
Chemical formulaCuSiO₃·H₂O
Dimensions6.6 cm × 5.8 cm × 3.6 cm
Weight130 g
ColorGreen
SizeSmall Cabinet (2–4 inches / 5–10 cm)
SpeciesDioptase
ConditionNo damage on display faces

Tags

mineral collectionnatural crystalscollector's itemdioptasemineral specimennamibiarare mineralsgeologydioptase specimengemstoneUnder $250

About this specimen

Dioptase crystals are celebrated for their vibrant green hues, originating from the renowned Tsumeb Mine in the Kaokoveld region of Namibia. This locality is famous among mineral collectors for producing exceptional dioptase specimens, noted for their intense coloration and well-formed crystals. Dioptase is a copper cyclosilicate mineral with the chemical formula CuSiO3·H2O and crystallizes in the trigonal system. It has a Mohs hardness of 5 and a vitreous luster, contributing to its attractive, glassy appearance.

This specimen features transparent to translucent, richly green dioptase crystals exhibiting sharp, prismatic forms that are typical of material from Tsumeb. The crystals’ vivid color and clarity make them visually striking, ideal for display within a mineral collection. Due to the closure of the Tsumeb Mine and the rarity of new finds, dioptase specimens from this locality have become increasingly scarce, enhancing their desirability among collectors.

When handling dioptase, it is advisable to avoid exposure to acids and prolonged moisture to preserve the integrity of the crystals. Displaying the specimen away from direct sunlight can also help maintain its vibrant color over time. This piece represents a classic example of Tsumeb dioptase, valued both for its geological significance and aesthetic qualities.

About Dioptase

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

Learn more about Dioptase in our encyclopedia

About Namibia

Namibia is one of the world's premier mineral countries — home of Tsumeb, the Erongo, and a wealth of gem and rare-mineral localities.

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. A display base is included.

Can I return it?

Yes — there is a 14-day return window.

What collectors say

★★★★★4.98· Verified reviews
Dioptase Crystal Cluster – Vibrant Green – Tsumeb Mine, Namibia
Dioptase Crystal Cluster – Vibrant Green – Tsumeb Mine, Namibia
$240.00$216.00