Mimetesite xls; Tiny Arenas Mine, Sardinia, Italy; Gerd Tremmel collection; Cab; unique piece
Mimetesite crystals from the Tiny Arenas Mine, Sardinia, Italy, Gerd Tremmel collection – cabinet specimen as unique piece
This cabinet specimen with Mimetesite crystals from the Tiny Arenas Mine, Sardinia, Italy, originates from the Gerd Tremmel collection and represents a particularly colorful example of this classic lead arsenate. The Mimetesite crystals occur as numerous intensely yellow to yellow green crystals densely covering the surface of the matrix.
The crystals are well developed and show a clearly recognizable prismatic to slightly barrel shaped morphology with lustrous crystal faces. They form dense crystal coatings across the reddish brown, iron rich matrix. The strong color contrast between the bright Mimetesite crystals and the darker host rock gives the specimen an exceptionally decorative appearance.
Geology & Origin
The Tiny Arenas Mine in Sardinia is a well known locality for secondary lead and arsenate minerals. The mineralization formed in the oxidation zone of a lead rich ore body where weathering processes produced minerals such as Mimetesite. The locality is characterized by intensely colored, well developed crystals that often occur as coatings on iron rich matrix, making it a classic European source for Mimetesite.
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) | 0.500000 |
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