Svabite, Manganoan calcite (UV) in Galena; Erongo, Namibia; 1 kg
Our raw stones are partially not cleaned. Possible impurities such as dust or dirt can be easily and quickly removed with water. This has no impact on the product quality.
Svabite, Manganoan calcite (UV) in Galena; Erongo, Namibia – 1 kg
This 1 kg lot contains hand-selected raw pieces from the renowned Erongo region in Namibia, combining several striking mineral phases. The dominant matrix consists of massive, grey-black galena with metallic luster. Fracture surfaces and vein fillings are coated with whitish to pale pink manganoan calcite, which fluoresces vividly in orange to pink tones under UV light. Particularly rare is the occurrence of svabite – a calcium arsenate mineral – found as light crusts or partial coatings within the same material.
The combination of lead-rich galena, UV-active manganoan calcite, and the rare svabite mineral makes this lot both visually appealing and mineralogically significant. Under shortwave UV, many pieces exhibit strong fluorescence, making them especially attractive for collectors of fluorescent minerals.
Geology & Origin
The Erongo region in central Namibia is famous for its pegmatite fields and polymetallic mineralization. Galena commonly occurs in association with other sulfides and secondary minerals in this area. Manganoan calcite, a manganese-rich variety of calcite, forms as crusts or vein fillings and is highly sought after for its fluorescent properties under UV light.
Svabite is a rare calcium arsenate that typically forms in the oxidation zones of arsenic-bearing ore deposits. Its occurrence in the Erongo district is noteworthy, as svabite is globally documented at only a few known localities. These hand-picked samples are ideal for collectors of fluorescent or rare secondary minerals.
Picture shows sample! Item may differ in size, shape and colour from the sample images.
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) | 1.500000 |
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