Rhabdophane - (Nd); Karnasurt, Lovozero, Kola, Russia; Min; unique piece
Rhabdophane - (Nd) from Karnasurt, Lovozero, Kola, Russia – miniature specimen as unique piece.
This miniature specimen from Karnasurt in the Lovozero massif on the Kola Peninsula in Russia features Rhabdophane-(Nd) on light colored matrix. The dark to blackish gray crystals occur as fine prismatic to needle like aggregates and create an attractive contrast against the pale surrounding matrix. The crystals are clearly recognizable and typical for the rare earth mineralization of this famous alkaline deposit. Despite its small size, the specimen displays an interesting structure and originates from one of the world’s best known localities for unusual rare earth minerals.
Geology & origin
The Lovozero massif on the Kola Peninsula is one of the world’s most important alkaline intrusive complexes and is famous for its enormous diversity of rare minerals. The deposits of Karnasurt in particular produced numerous rare phosphates, silicates, and rare earth minerals. Rhabdophane-(Nd) is a rare neodymium phosphate belonging to the group of hydrated rare earth phosphates and commonly occurs in fine needle like to radial crystal aggregates. Specimens from Lovozero are highly valued among collectors because of their mineralogical diversity and scientific importance.
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) | 0.080000 |
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