Fluorapatite xls; Mina Siglo Veinte, Llallagua, Bolivia; Cab; unique piece
Fluorapatite crystals from Mina Siglo Veinte, Llallagua, Bolivia – cabinet specimen as unique piece
This interesting cabinet specimen originates from the famous Mina Siglo Veinte tin deposit near Llallagua, Bolivia. Several light colored Fluorapatite crystals are clearly visible within a natural cavity in the dark matrix, creating an attractive contrast with the surrounding rock. The crystals display prismatic forms with pale, slightly translucent faces that give the specimen a distinctive appearance. The open cavity structure further enhances the aesthetic appeal and provides an excellent example of natural crystal growth within the host rock.
Geology & Origin
The Llallagua mining district is one of the world's most significant tin producing regions. The mineralization formed through hydrothermal processes in which hot mineral rich fluids deposited numerous ore and accessory minerals within fractures and cavities. Fluorapatite, a fluorine bearing calcium phosphate, occasionally develops well formed crystals in these open spaces. Mina Siglo Veinte is renowned for its mineralogical diversity and has produced many rare and highly collectible mineral specimens for collectors worldwide.
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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