FLUOR SPAR. 
153 
Fluors. In Derl>ysliire it occurs in masses solid enough to admit of 
being wrought into vases. The eastern portion of Cornwall, up to the 
border river, the Tamar, is also noticeable for the colours, and the 
size, and numerous planes of the crystals. , 
376. Fluor Spar, (^Fluoride of 
Calcium), in large cubic crystals, 
partially encrusted with Carbonate 
of Iron. 
From the holloiv pco'ts of the lead- 
hear mg veins of AUenheads, 
Nor th umherlan d. 
Presented by W. B. Beaumont, M.P. 
377. Fluor Spar, in green cubic 
crystals. 
Near Darlington, Wear dale, Dur¬ 
ham, 
378. Fluor Spar, in blue cubic 
crystals. 
Weardale, Durham. 
379. Fluor Spar, Avith Quartz, 
on Spathose Iron Oi'e. 
Co. of Durham. 
380. Fluor Spar, in purple 
crystals, with Quartz and Calcite. 
Durham. 
381. Fluor Spar, in yelloAv 
crystals, Avith Calcite. 
Co. of Durham. 
382 & 382a. Fluor Spar, in 
green cubic crystals, on disinte¬ 
grating limestone. 
o O 
Co. of Durham. 
(No. 382a is placed in the case under¬ 
neath.) 
383. Fluor Spar, in purple 
cubic crystals. 
Cargill, Aldstone Moor, Cumber¬ 
land. 
384. Fluor vSpar, in cubic 
crystals, partially encrusted Avith 
Bitter Spar. 
Aldstone. 
385. Fluor Spar, purple, from 
a vein of galena and blende. 
Smittergill Head Mine, Cumber¬ 
land. 
386. Fluor Spar, Avith minute 
disseminated crystals of Copper 
Pyrites. 
Cockwell Mine, Ashover, Derby¬ 
shire, 
387. Fluor Spar, massive 
purple variety, locally termed 
‘‘Blue John.” 
Derbyshire. 
388. Fluor Spar, a mass ex¬ 
hibiting on one side the thickness 
of the crystalline deposit. 
Caslleton, Derbyshire, 
389. Fluor Spar, a crystalline 
mass roughly rounded preAuously 
to turning in a lathe. 
Castleton, Derbyshire. 
390. Fluor Spar, Avorked into 
a Tazza. 
(Nos. 387 to 390 are placed in the case 
beneath.) 
391. Tazza, of dark purple 
Derbyshire Fluor Spar. 
(In the hall will be found two vases of 
purple Derbyshire Fluor Spar, one of 
which is said to be the largest and finest 
known specimen.) 
392. Circular Dish of yelloAV 
Derbyshire Fluor Spar. 
393 to 405. Polished sections of 
Derbyshire Fluor Spar, the 
colour being cleA'eloped by expo¬ 
sure to heat. 
406. Fluor SPAR,locally termed 
“ Cann,” pale green A^ariety. 
South Tamar Lead Mines, De¬ 
vonshire. 
407. Fluor Spar, pale green 
cubic crystals, partially incrusted 
Avith crystallized Quartz. 
South Tamar Lead Mines, De¬ 
vonshire. 
408. Fluor Spar, in Avhite 
cubes, Avith rhombohedral crystals 
of Dolomite. 
From a Lead Mine, 7iear Beeral- 
ston, Devonshire. 
409. Fluor Spar, blue, Avith 
Iron Pyrites, resting on Quartz 
crystals, which inA-^est earlier 
formed cubes of Fluor. 
From the Lead Alines of Beeralston, 
Devonshire. 
