Fluorescent 15 Rare Svabite and Braunite from Langban Sweden

Description

This rare specimen contains two minerals. The first is the fluorescent mineral Svabite which fluoresces orange under short wave ultra violet light and the second mineral is non-fluorescent Braunite. This specimen is from Langban, Sweden. It comes with a vintage label from Wards Natural Science Est Inc. It has been in our personal collection for many years. This specimen is highly fluorescent on all sides. Here is your chance to own a bright rare classic! Svabite is a rare calcium arsenate fluoride mineral that belongs to the Apatite Group of minerals. Svabite is also the arsenate analogue of Fluorapatite. When the mineral Fluorapatite occurs near arsenic-bearing ores, some of the phosphate ions are often replaced by arsenate ions. When the arsenate ions outnumber the phosphate ions the mineral becomes Svabite. It was named in 1891 by Hjalmar Sjögren after Anton von Swab. Svabite can be found in both Sweden and Germany.

This specimen weighs 6.7 oz or 0.41 lbs (190 g) and measures 2.5 x 1.4 x 1.1 inches (6.4 x 3.7 x 2.9 cm)