cover image: A Manual of the Geology of India. Part IV: Mineralogy (Mainly Non-Economic)

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A Manual of the Geology of India. Part IV: Mineralogy (Mainly Non-Economic)

1887

The system of classification adopted in the present work is that of Professor Dana as given in his System of Mineralogy.' No attempt has been made in the following pages to dscribe the occurrence in individual localities of the comoner minerals which are to be met with in innumerable places. [...] The unsatisfactory results obtained by so many of these show thatienuch of the auriferous quartz contains but a low proportion of metal—a fact indicated by the following abstract of the published returns up to the first quarter of 18831 :— On the other band the encouraging results obtained by.tlit Mysore gold-mining company in Kolar conclusively show that the quartz in portions at least of s [...] In 1878 several water-worn masses of pure metal reaching up to 221b in weight were discovered in the bed of the stream and were subsequently when in the possession of the Governor of Ladakh seen by Mr. [...] The source whence the nuggets came has not been traced but recollecting how frequently native copper is connected with trappean rocks as in the well-known lake Superior mines the conjeture may perhaps be hazarded that the vicinity of the trappean intrusions which occur between the tertiary and carboniferous strata of the Markha valley is one of the most likely localities for the copper to [...] In 1882 a sample of graphite of fairly good quality for a surface piece was sent to the museum by the commissioner of the Chhattisgarh division (Central Provinces) who stated that similar stuff was "said to occur in large quantitfes near the villages of Lanjigaon and Dingsargi in the feudatory state of Kalahandi " (Chhattisgarh).
technology medicine science
Pages
196
Published in
India
SARF Document ID
sarf.141457
Segment Pages Author Actions
Preface
i-xi F.R Mallet view
I—Native Elements
1-11 unknown view
II—Sulphides Arsenides Antimonices
12-32 unknown view
III—Chlorides
33-36 unknown view
IV—Fluorides
37-37 unknown view
V—Oxygen Compounds
38-158 unknown view
VI—Hydrocarbon Compounds
159-160 unknown view
Appendix
161-162 unknown view
Index
163-179 unknown view
Plates
i-viii unknown view

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