Picture shows sample! Item may differ in size, shape and colour from the sample image!
Pierrotite, Weissbergite, thallium minerals; Lookout Pass, Utah, USA; Min
$34.90
Item number
GARDE1025808
The pictures show some samples. You will receive a randomly selected flat from this material.
Pierrotite, Weissbergite and other thallium minerals – One Miniature specimen
This Min presents rare thallium minerals from the Lookout Pass Thallium Prospect in Utah, including Pierrotite, Weissbergite and other associated species typical for this locality. The matrix is mostly fine-grained to compact and displays light, cream-coloured, grey or slightly brownish tones characteristic of this mineral group. Some areas show clearly recognisable structural surface textures, while others appear more massive, reflecting the natural variability of the mineralisation. This Min is ideal for collectors wishing to expand their collection with rare and geochemically significant mineral species.
Geology & origin
Lookout Pass in Tooele County, Utah, is one of the few localities worldwide where several thallium minerals occur together. Confirmed species include Pierrotite (TlFe³⁺₂(As,Sb)₅S₉) and Weissbergite (TlSbS₂). The mineralisation belongs to a thallium- and antimony-rich sulphide association that has been scientifically documented in this area for many years. Utah is regarded as an important region for rare sulphidic thallium minerals, which are known from only a small number of occurrences worldwide.
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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