Brandtite xls; Harstigen, Sweden; Scab; unique piece
Brandtite crystals from Harstigen, Sweden – small cabinet specimen as unique piece
This rare small cabinet specimen originates from the classic manganese deposit of Harstigen in Sweden and displays Brandtite on a dark iron and manganese rich matrix. The specimen shows light gray to whitish mineralized areas that contrast strongly with the brown host rock. Individual crystals are only partly recognizable on this specimen; Brandtite occurs mainly as fine-grained to compact aggregates. The rarity of the mineral and the historic importance of the locality make this piece an attractive addition to collections focused on Scandinavian and rare manganese minerals.
Geology & Origin
Brandtite is a calcium manganese arsenate and belongs to a group of rare minerals that form in manganese-rich deposits. Harstigen in Värmland is one of Sweden's most important classic localities for rare manganese minerals and has produced numerous scientifically significant mineral species. Complex alteration processes affecting manganese-rich ores led to the formation of an exceptional mineral assemblage in which Brandtite occurs together with other rare arsenates and silicates. Due to its rarity, material from Harstigen is highly valued in specialized mineral collections.
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) | 0.100000 |
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