Matlockite - Sold
- United Kingdom
- 6.9 by 4.9 by 1.7 cm – Small cabinet specimen (under 10 cm)
Matlockite is a lead chloride fluoride, with a very simple formula: PbFCl. Greg (1851) named the mineral after the village of Matlock, near the original occurrence. Greg further illustrates the mineral, showing the tabular habit also seen in this example. There is a 1.8 by 1.4 cm parallel growth crystal group lying flat on this matrix. Some of the crystal edges show microchipping, but the condition is excellent considering the age of the specimen. The age of the specimen is reflected in the two glued-on labels, and an old Ward's label. This specimen was part of the personal collection of Ralph Merrill, proprietor of the prolific mail order business Minerals Unlimited, obtained in 1952.