lt',1 THE MINERALS OF rill. MIDLANDS. 



ruins) in which black Wad was burnt. It was afterwards 

 packed in barrels and sold to the Government as a black 

 pigment for painting ships in the navy. 



Copper Ore. — Ore not now worked. Specimens can be obtained from 

 old hillock Q Mine, also at Cumberland Mine, Matlock 



Bath. Malachite has been met with at the Nursery Mine, 

 between Hopton and Brassington. 



Calcite.— Best specimens at Alport, Ashover, and Wirksworth. 

 Colourless at lead mines of Nether Haddon, near Bakewell. 

 Bill Mine, near Monsal Dale Station, is solely worked 

 for Calc-spar, which, after Leaving the mine, is broken up, and 

 then pa ised through crushers. It is sold for garden walks and 

 oLher ornamental purposes. 



Fluor Spar. — Worked for ornaments. After leaving the mine, the 

 ral is dried and then thoroughly saturated with melted 

 resin to prevent it cracking. This facilitates the artist's work in 

 turning and polishing. Tigre Stone, a scarce variety, consisting 

 of a mixture of transparent fluor and opaque cream-coloured 

 fluor. 



FAaterite. — Only found in one locality, near Castleton. The best place 

 is in Windy Knoll Quarry, near the bottom of Mam Tor, and 

 within a few yards of the road leading from Chapel-en-le-Frith 

 to Castleton. 



Petroleum. — A large quantity of this mineral oil is yearly obtained 

 from the Kilburn coal workings at Bidding's Colliery, near 

 Alfreton. A sump is sunk at the bottom of the mine, and 

 into this the oil rinds its way. Some years, as much as 100 

 tons of oil have been obtained. It is sold for various lubri- 

 cating purposes, and realises as much as £7 10s. per ton. 



Rock Crystal. — Found in amygdaloid cavities of decomposing toad- 

 stone, near Buxton ; also at Diamond Hill, near Miller's Dale 

 Station. 

 Besides ■• Hall's Mim ralogical Directory," I find that " A Manual 

 of Mineralogy," by Gregg and Lettsom, Van Voorst, 1S58, gives refer- 

 ence to British localities. Derbyshire localities, different from those 

 already given, are 



Anhydrite. — Aston-on-Trcnt. 



Barytes.—Si with concretionary and radiating markings of 



ricli brown in a field at Newhaven. Cockscomb Barytes, 



mon in Derbyshire localities. Hepatite, an impure spar, 



emit; our on friction, occurs at Buxton, Eyam, 



ami ."Wat lock. 



Melanterite. — Castleton. 

 Malachite. — Hopetown. 



I ylite. Middleton, Hopetown, Wensley, and Matlock. 

 Angle.. or, near Eyam, and Crick Mine, near 



Wirksworth. 



Mr. Stokes wril t little dependence is to be placed on the 



i Lists of l 1 minerals, and refers to several deficiencies 



in Hall'r list already given. 



• en Derbyshire minerals, in the "Nottingham High 



