Trechmannite, Hutchinsonite xls; Lengenbach Mine, Binntal, Valais, Switzerland; TN; unique piece
Trechmannite and Hutchinsonite crystals from the Lengenbach Quarry, Binntal, Valais, Switzerland – micromount as unique piece
This micromount specimen features crystals of Trechmannite and Hutchinsonite from the Lengenbach Quarry, Binntal, Valais, Switzerland. The fine, light-colored matrix hosts the characteristic darker sulfosalt aggregates in a compact arrangement, creating a calm yet highly distinctive representation of this classic Lengenbach association. Despite its small size, the specimen has considerable mineralogical significance, making it especially appealing to specialized collectors of rare Lengenbach minerals. The piece is clearly documented and originates from find L-24580.
Geology & Origin
Trechmannite and Hutchinsonite belong to the group of complex lead–arsenic sulfosalts for which the Lengenbach Quarry is internationally renowned. Their formation required very specific geochemical conditions within dolomitic host rock, resulting in an exceptional diversity of rare mineral species. The Binntal locality remains one of the world’s most important sites for such sulfosalts and is of outstanding importance for both collectors and mineralogical research.
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) | 0.050000 |
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