Dugganite xls; Empire Mine, Tombstone, AZ, USA; TN; unique piece
Dugganite crystals from the Empire Mine, Tombstone, AZ, USA – micromount as unique piece
This micromount specimen shows Dugganite crystals from the Empire Mine, Tombstone, Arizona, USA. The piece comes from a classic locality for secondary lead arsenic minerals and presents an attractive and strongly contrasting mineral association.
The Dugganite crystals are clearly visible as bright yellow green to greenish coatings and fine crystalline aggregates. They are set on a darker matrix and accompanied by lighter partly quartz rich areas, creating a particularly appealing color contrast. The crystals form a fine grained to slightly granular surface and stand out distinctly from the surrounding rock.
Geology & Origin
Dugganite is a rare lead arsenic oxide mineral that forms in the oxidation zone of lead deposits. It develops through the alteration of primary sulfides under the influence of oxygen and arsenic bearing solutions.
The Empire Mine in Tombstone, Arizona, is part of a historically important mining district known for its wide variety of secondary mineral formations. The oxidation zones of these deposits in particular produce a rich diversity of colorful and rare minerals such as Dugganite.
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) | 0.050000 |
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