Conichalcite xls; Tsumeb Mine, Otavi Mountains, Namibia; Ilse Baer collection; Cab; unique piece
Conichalcite crystals from Tsumeb Mine, Otavi Mountains, Namibia, Ilse Baer collection – cabinet specimen as unique piece
This cabinet specimen features vivid green Conichalcite crystals from the famous Tsumeb Mine in the Otavi Mountains, Namibia, from the Ilse Baer collection. The crystals form dense, partly botryoidal to granular aggregates showing bright apple-green to yellow-green coloration, locally enhanced by darker contrasting matrix areas. The surface appears highly dynamic and richly textured, with numerous small crystal formations contributing to the specimen’s strong visual appeal. Overall, this is a highly characteristic and aesthetically striking example of Conichalcite from Tsumeb.
Geology & origin
Conichalcite is a secondary copper calcium arsenate that forms in the oxidation zones of arsenic-rich copper deposits. The Tsumeb Mine in the Otavi Mountains is renowned worldwide as one of the most important localities for rare and visually outstanding secondary minerals. Conichalcite from this locality commonly occurs as intensely colored, fine- to densely crystalline aggregates, often associated with other copper minerals. This specimen originates from the well-known Ilse Baer collection and reflects the exceptional mineralogical diversity of this classic deposit.
This table is for general information and orientation, although the sizes of the stones may vary. In addition, this specification is handled differently from region to region.
| Sizes | Description | approx. Sizes in mm/cm | approx. Sizes in INCH | |
| Capsule | Capsule | 0.1–0.5 mm in a transparent hard capsule (approx. 1 cm) | capsule contents 0.1–0.5 mm | capsule contents 0.004–0.02 in |
| TN/mm | Micromount (TN = Thumbnail) | everything fitting in a TN Perky box or a MM box of approx. 1 in | approx. 0.5–2.5 cm | max. 1 in |
| Min | Miniature specimen | will not fit a TN or MM box anymore | approx. 2.5–5 cm | approx. 0.2–1.0 in |
| Scab | small cabinet specimen | approx. one-third to half a hand size | approx. 5–9 cm | approx. 1.0–2.0 in |
| Cab | cabinet specimen | full hand size | approx. 9–15 cm | approx. 2.0–3.5 in |
| large Cab | large cabinet specimen | approx. two hand sizes | approx. 15–30 cm | approx. 3.5–6.0 in |
| very large Cab | very large cabinet specimen | everything larger, no upper limit |
Abbreviations commonly used in mineralogy.
| Abbreviation | Meaning |
| xl | single crystal, possible with matrix |
| xls | noticeable crystals |
| (xl) | embedded or damaged |
| (xls) | embeddet or damaged |
| MASS | massive and/or amorphous pieces |
| TYP | type locality of the original description |
| SWUV | shortwave-UV-reaction |
| UV | ultraviolet reaction |
| SC | self-collected |
| U | unique (single unique piece) |
Usage Instructions
This product is ideal as a collector's item, decorative element, teaching material, or for scientific and exhibition purposes.
Legal Notices
Safety
We accept no liability for damages resulting from improper and/or non-recommended use. Please carefully assess the suitability of the product before any alternative use.
Responsible Provider
Mikon Mineralienkontor GmbH
Steinslieth 11
D-37130 Gleichen OT Klein Lengden
Email: info@mikon-online.com
| shipment-weight, NOT netto weight (kg) | 0.100000 |
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