DEVELOPMENT OE COAL MINES, ETC.

55

D.—No. 3

AUCKLAND Continued.

Variety. II T3 § .a-e Ash. j Nature of Coke. O b o 1 Coromandel: — Thin seam, underneath the trachyte breccias. Altered Pitch Coal 615 6-15 47 90 7-80 j 11-80 Cakes slightly I 4790 7-80 11-80 1,198 Waiapu, Hast Cape : — Thin seam ; contains much ash, being almost a shale. Pitch Coal 4-82 4-68 I 4-82 37-10 | 2-70 35-80 Cakes slightly 4-68 36-02 i 2-98 27'37 37-10 36-02 | | 2-70 i 2-98 35-80 27-37 88a 88S Average composition ... 4-75 4-75 36-56 2-84 36-58 36-56 2-84 36-58 Mokau Harbour : — Reported to be a 7-foot seam, in an accessible position. Brown Coal 5-04 5-04 40-00 14-00 7'80 Non-caking 40-00 1400 7-80 49 WELLINGT N. Upper Wanganui River ; — A thick seam reported. I Pitch Coal 6-42 | 51-00 j 8-60 i 4'20 i Non-caking i 74 NELSON Brunner Coal Mine, Grey River : — An 18-foot seam, in micaceous sandstones and grits. Half square mile has been proved, but it extends over a large area, though much faulted. Mine worked since 1865. Bituminous Coal 8-10 | 7-93 I 739 I 7-20 1 7-03 6-49 8-10 62-37 1-99 6-20 H f 793 61-00 1-90 3-20 Cakes 739 56-86 1-16 5-49 I strongly, and , 7-20 55-40 1-60 5-20 ' forms valu- 1 7-03 54-11 1-40 11-30 able coke 6-49 4998 1'52 526 j (_ 62-37 61-00 56-86 55-40 54-11 4998 331 1,240 332 Average composition 7-36 7-36 56-62 1-59 6T1 5662 Mount Bochfort : — Seams on high plateau 10 to 18 feet thick, from 900 to 3,000 feet above sea level. Largest continuous area at Coalbrookdale, has a 10 feet seam, interbedded with quartzose and micaceous grits. Bituminous Coal 8-50 8-15 i . 8-09 | 7-81 I 7-63 7-43 7-36 8-50 65-45 260 4.00 ~] f 8-15 ( 62-70 1-05 4-70 8-09 162-29 4-99 -74 Cakes strongly 7-81 60-10 1-70 -40 }- and forms -J 7-63 58-74 -70 4-55 valuable coke 7-43 57-20 1-80 -80 7-36 56-63 301 1-29 |J (_ 65-45 I 62-70 62-29 60-10 58-74 57-20 56-63 37 329 95 93 330 "94 Average composition ... 7-85 7-85 60-44 2-26 235 60-44 Inangahua, Murray Creelc : — An 18-foot seam, associated with quartzone grits. j 7-03 [ 7-02 7-03 54-52 4-98 1-19 Cakes slightly 7-02 54-94 10-38 -98 j 54-52 54-94 1,165 235 Average composition ... 7-02 | I i 7-02 54-73 7-68 1-08 54-73 Upper Buller, Coal Creelc : — Seam 16 feet, with brown micaceous sandstones, found on both sides the Buller River. 6-38 4-63 6-38 50-80 19-40 I 7'20 Non-caking 4-63 38-63 11-45 ! 5'65 50-80 38-63 1,096 181 5-50 5-50 44-71 15-42 6'42 44-71 Average composition ... Brighton : — A 6-foot seam, in brown sandstone under marl. Mohihanui: — Brown sandstones under marls. Sea Coast North of Point Elizabeth : — A 6-foot seam underneath ferruginous sandstone ; good illuminating properties. Collingwood Mine :■ — Several thin seams, in brown sandstones. Mine worked since 1868. Brown Coal Pitch Coal Bituminous Coal 509 5-09 41-08 21-54 J 10-46 41-08 101 5-98 5-98 46-61 7-28 ; 2-75 Cakes slightly 46-61 1,221 4-45 4-45 34-80 6-20 3'60 Adherent 34-80 1,220 7-69 7-55 7-09 7-69 59-20 2-40 : 5'80 Cakes moderately 7-55 5812 1-26 5'11 7-09 54-60 2-20 ! 3'80 59-20 58-12 54-60 59-20 58-12 54-60 62S 1,221a 62a Average composition ... 7-44 7-44 57-31 1-95 4-90 57-31 57-31 Pakawau: — Same formation as the previous. Seams yet found very irregular and very variable in quality, many of them being carbonaceous shales, which are not included in the general average —no regular mining. Bituminous Coal ... 8-71 I 6-54 ! 6-51 6-03 8-71 67-00 4-90 : 1-40 Cakes 6-54 5034 333 :10-16 Cakes strongly 6-51 50-10 3-56 , 8-26 6-03 46-44 2-57 6-92 Slightly adherent 67-00 5034 50-10 46-44 67-00 5034 50-10 46-44 2 522 328 1,026 Average composition ... 6-95 6-95 53-47 3-59 6'68 5347 3-59 6-68 11