Mitridatite xls; Tip Top Mine, South Dakota, USA; Gerd Tremmel collection; Scab; unique piece
Mitridatite crystals from the Tip Top Mine, South Dakota, USA, Gerd Tremmel collection – Scab as unique piece
This small cabinet specimen shows Mitridate crystals from the Tip Top Mine, South Dakota, USA, from the Gerd Tremmel collection. Numerous brown to olive brown Mitridate crystals occur on a light, partly translucent Quartz matrix in spherical to botryoidal aggregates. The crystals are irregularly distributed across the surface and form dense, finely structured coatings with a lively relief. A distinct contrast develops between the clear Quartz areas and the earthy crystal zones, clearly emphasizing the structure of the specimen. The combination of translucent matrix and compact crystal aggregates gives the piece a balanced and differentiated overall appearance.
Geology & Origin
The Tip Top Mine in South Dakota is part of the pegmatite rich Black Hills region, well known for its diversity of phosphate minerals. Mitridate forms here as a secondary iron phosphate in the weathering and oxidation zone of primary phosphate rich minerals. Under oxidizing conditions, mineral rich solutions circulated through fractures and cavities of the pegmatite and led to the precipitation of characteristic botryoidal crystal aggregates. These processes document the complex geochemical evolution of the classic pegmatite deposits of this region.
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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