Akdalaite; Bulla Island, Caspian Sea, Azerbaijan; Capsule; unique piece
Akdalaite from Bulla Island, Caspian Sea, Russia. Capsule as unique piece for mineral collectors.
Akdalaite is an exceptionally rare aluminum borate mineral known from only a few localities worldwide. This specimen originates from Bulla Island in the Caspian Sea, off the coast of Azerbaijan—an area geologically renowned for producing unique and unusual mineral formations. The piece is preserved in a clear specimen capsule and is well suited for systematic mineral collections or collectors of rare geological materials.
Crystallizing in the hexagonal crystal system, Akdalaite typically forms in very small aggregates, which contributes to its rarity in collections. Its complex chemical structure and specific formation conditions make it a mineral of particular scientific and collector interest.
This individual specimen comes from a carefully selected collection of rare borate minerals and represents a valuable addition to any thematic or systematic collection. It will be especially appealing to collectors focused on borate species, aluminum-bearing minerals, or mineral localities within the Caucasus region.
A unique collector’s item from a remote and little-known source—perfect for advanced collectors, educational institutions, or as a centerpiece in specialized mineral exhibits.
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) | embeddet 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) | 0.020000 |
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