Leadhillite xls; Tsumeb Mine, Otavi Mountains, Namibia; TN; unique piece
Leadhillite crystals from the Tsumeb Mine, Otavi Mountains, Namibia – micromount as unique piece
This micromount specimen with Leadhillite crystals from the Tsumeb Mine, Otavi Mountains, Namibia shows a delicate transparent crystal with a thin tabular habit. The colorless to slightly milky crystal displays a clearly developed platy structure and stands freely on a small matrix base. The well defined crystal form and its delicate appearance give this specimen a particularly elegant aesthetic in micromount size.
Such transparent Leadhillite crystals belong to the classic secondary minerals from the oxidation zone of the Tsumeb deposit. The combination of clear crystal form and the famous origin from one of the most important mineral localities in the world makes this specimen an attractive collector item.
Geology & Origin
Leadhillite is a basic lead carbonate sulfate and forms secondarily in the oxidation zone of lead rich ore deposits. The mineral develops through alteration processes of primary lead minerals under oxidizing conditions and can form tabular to platy crystals. The Tsumeb Mine in Namibia is one of the most important classic mineral localities worldwide and is famous for its extraordinary diversity of rare secondary lead and copper minerals.
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) | embedded 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) | 0.050000 |
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