Jarosite xls; Kamariza, Laurion, Greece; Gerd Tremmel collection; Scab; unique piece
Jarosite crystals from Kamariza, Laurion, Greece, Gerd Tremmel collection – Scab as unique piece
This small cabinet specimen shows Jarosite crystals from Kamariza, Laurion, Greece, from the Gerd Tremmel collection. The surface is covered with yellowish to ochre brown Jarosite crystals developed in fine grained, dense aggregates on a dark brown, iron rich matrix. The crystals give the rock a granular to slightly crust like texture with a matte appearance. Rust brown and earthy zones appear between the intensely colored areas and emphasize the relief of the specimen. The compact development and warm color palette create a cohesive and structured overall appearance.
Geology & Origin
The Laurion mining district in Greece is one of the classic European ore regions characterized by a complex oxidation zone. Jarosite forms here as a secondary potassium iron sulfate mineral in strongly oxidizing, acidic environments through the weathering of primary sulfide ores. Its formation typically occurs in iron rich zones where sulfide minerals are decomposed under the influence of oxygen and water. The localities at Kamariza document the intense weathering processes within the historic lead and silver deposits of Laurion.
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 |
|---|