Allocasite xls; Bouismas Mine, Bou Azzer, Morocco; Scab; unique piece
Alloclasite crystals from the Bouismas Mine, Bou Azzer, Morocco – small cabinet specimen as unique piece
This Alloclasite from the Bouismas Mine in the Bou Azzer district, Morocco, displays a compact metallic grey to silvery surface with a fine fibrous to granular texture. The crystals are largely intergrown and not individually well developed, but clearly form crystalline aggregates with a characteristic metallic luster. The surface shows a lively, structured appearance typical of arsenide ore minerals. The specimen originates from the Gerd Tremmel collection and is offered as a unique piece.
Geology & Origin
Alloclasite is an iron arsenide that typically forms in hydrothermal vein deposits, commonly associated with cobalt, nickel, and other arsenic minerals. The Bou Azzer district in Morocco is one of the world’s most important localities for arsenide minerals, renowned for its mineral diversity and well studied parageneses. Specimens from the Bouismas Mine are known for their massive to crystalline alloclasite aggregates and are highly valued by both mineralogists and collectors.
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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