THE MINERALS OK THE MIDLANDS. 163 



" High School Magazine" for Midsummer, 1878, on Derbyshire 

 minerals. 



Gloucestershire . 



Mr. W. Lucy, F.G.S., promises a full and complete list of minerals. 



Shropshire. 



Professor Prestwich, M.A., F.R.S., list of minerals and reference 

 to paper. 



Warwickshire. 



Mr. A. H. Atkins, B.Sc, reference to localities for minerals. 

 Mr. G. T. Cashmore, promises localities and other information. 



Worcestershire. 



Dr. Harvey B.Holl, F.G.S., list of minerals of the Malvern Hills. 



I may now proceed to sum up the information received respecting 

 minerals of the different counties. 



DERBYSHIRE. 



Some notes taken from a paper on " The Economic Geology of Derby- 

 shire," by Mr. A. H. Stokes, F.G.S., H.M. Inspector of Mines. 



Brown Haematite. — A little to the north-west of Hubberdale Mine, near 

 Taddington, and also near Elton. 



Limonite. — A field one mile north of Castleton, and to the east of Odin 

 Lead Mine. 



Brown Lead Ore — Linnets. — Near Elton and Newhaven. Called linnets 

 from its linnet-like colour. 



White Lead Ore — Cerussite. — A large quantity has been found near 

 Brassington, also at Heyspots Mine, near Elton. Also found 

 occasionally at Cabin Mine, Newhaven. The ore is sometimes 

 called " Wheatstone," probably from its resemblance to wheat 

 or rice. 



Green Lead Ore — Py minor phite. — Mines near Winster. 



Phosgenite — Murio-carbonate of Lead.— -Very scarce. Mr. Stokes has 

 been able to obtain one small specimen. This was found in 

 Meer Brook Sough Mine, Wirksworth. 



Gypsum. — Chellaston, also in railway cutting between Trent and 

 Loughborough. 



Barytes. — In nearly all lead mines. The mineral is used for adul- 

 terating white lead. After being ground to fine powder it passes 

 into settling troughs. When the troughs are partly filled 

 with sediment the paste is removed and placed on hot stones. 

 It is afterwards cut up into bricks, dried, and pressed into 

 barrels like cement. For the finer quality the paste from the 

 eettling troughs is placed in lead vats and mixed with vitriol, 

 kept warm by steam, previous to being dried. 



Pyrites. — Large cubic crystals at Gregory Mine, near Ashover. 



Blende. — Specimens can be obtained from the old hillocks, near 

 Ashover and Hartington. An interesting variety, called Ruby 

 Blende, is found crystallised on Limestone or Calc Spar. The 

 crystals are small, and of a nearly transparent red colour. 



Wad. — There are a number of mines near Elton working this mineral. 

 At Wensley, many years ago, there was a furnace (now in 



