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SECTION IY, — MINERALS, — Continued. 
Sub-Section I. — Minerals which are either the components of rocrs 
OR ARE FOUND EMBEDDED IN THEM, — Continued. 
152 Witlierite (carbonate of barium). 
Anglesark, near Chorlcy, Lancashire. 
153 Barytes (sulphate of barium) in tabular 
crystals, aggregated. Devonshire. 
154 Do. as a stellated group of crj r stals on septariuin, 
from the Loudon Clay, Island of Sheppy. 
155 Do. from the fuller’s earth beds at 
Nutfield, near Dei gate, Surrey, 
156 Do. massive and mingled with some earthy 
substance, Derbyshire. 
157 Do. var. called Cawk, with galena. Do. 
158 Strontianite (carbonate of strontium) with 
barytes. Strontian, Argyleshire. 
159 Celestine (sulphate of strontium) . Near Bristol, 
160 Do. in crystals with native sulphur. Girgenti, Sicily. 
161 Cryolite (fluoride of aluminium and sodium), 
white variety. Greenland. 
162 Do. Do. brown variety. Do. 
163 Bock Salt. Cheshire. 
164 Boronatrocalcite or Ilayesine in minute 
interlacing fibres. Tarapacil, Peru. 
165 Glauberitc found in crystals disseminated 
through the Boronatrocalcite. 
Do. Do. 
