Tenorite xls; Nickenicher Sattel, Eifel, Germany; Cab; unique piece
Tenorite crystals from Nickenicher Sattel, Eifel, Germany – cabinet specimen as unique piece
This remarkable cabinet specimen displays dark Tenorite crystals on a highly porous volcanic matrix from the well-known Eifel volcanic region. The black to steel-gray crystals are scattered throughout numerous cavities and depressions in the rock, creating an attractive contrast with the light brown matrix. The crystals are clearly visible and give the specimen an appealing three-dimensional appearance. The vesicular, slag-like texture of the matrix vividly reflects the volcanic origin of the material.
Geology & Origin
Tenorite is a rare copper oxide with the chemical composition CuO. The mineral typically forms in oxidation zones of copper-bearing deposits or through high-temperature volcanic processes. The Nickenicher Sattel area in the Eifel is one of Germany's classic localities for volcanic minerals and is closely linked to the relatively young volcanic activity of the Rhenish Massif. The volcanic slags and lava deposits formed there provided suitable conditions for the development of rare oxide minerals such as Tenorite. Specimens from this locality are appreciated by collectors of German mineral occurrences because of their geological significance and well-documented volcanic origin.
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) | 0.500000 |
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