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- Availability
- Sold
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- Locality
- Touissit dist., Oujda-Angad prov., Oriental, Morocco
- Formula
- PbSO4
- Size
- Thumbnail 2x1.5x1.5cm
Gemmy amber colored wedge-shaped crystals to 1cm in a cluster of at least 10 crystals. The mines of Touissit were recently covered in an article in the Nov/Dec 2013 issue on the Mineralogical Record by Steffen Jahn and Rainer Bode. Of course the Anglesite from this locality were found in much larger crystals in the early 1980's to 5cm. Some of the crystals were treated (accidentally or on purpose) to bring out the color. This specimen was NOT treated as can be seen in a small chip off the crystal at the bottom, which internally shows the same color.
The mines around Touissit are classified by geologists as Mississippi Valley Type. As in the mines of Illinois, Kentucky and Tennessee, the Touissit district contain large mineable lead-zinc replacement deposits hosted within dolomite beds. Concentrations of ore are located along structured and are also stratigraphically controlled. In contrast to the US midwest MVT deposits, the Touissit deposits are fluorine deficient.
- Availability
- Sold
- Locality
- Touissit-Bou Beker dist., Jerada Prov., L'oriental, Morocco
- Formula
- PbSO4
- Size
- SmCabinet 6x5.5x5cm
Glassy colorless and yellow crystals of fine Anglesite in a large pocket of Galena. The yellow is a faint honey color. The largest crystal is about 1.7cm. Nice piece. I took the photos under two light conditions. The darker photos were taken under fluorescent lighting. The others were halogen. I think the hallogen is closer to the really color.
- Availability
- Sold
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- PbSO4
- Size
- Cabinet 10x8x8cm
This specimen is loaded with large orthorhombic-octahedral crystals measuring nearly 2cm on edge. Many of the crystals are 1 to 1.5cm on the front side. The backside has numerous crystals also but only to around 5mm. There are dendritic inclusions in the crystals of some sort, perhaps Silver. The matrix is massive, black Chalcocite.
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