INVENTORY OF MAJOR MINERALS OF WEST BENGAL
(Based on database of Directorate of Mines & Minerals, Government of West Bengal)
|Sl. No.||Mineral / Commodity||Location||Estimated Resource||Grade||Proximity to
|Nature of Ore
Manbazar, Dist purulia
|0.2 miillion tonnes existing (upto 50m depth), so far reported.||1.5
core study reveals that sulphides have the affinity for Calc-rich portions of
the schist and mineralization is generally confined within calcite bands
& patches within phyllite schist. Mineralization found mainly along faults and shear zones. Analysis of
drill cores reveals poor mineralization which is restricted mainly between the depths of 8m and 30m. In some cases the depth persists upto 70m (approx.). Further
appreciable mineralization observed in drill cores of 4 boreholes which is
restricted between the depth of 9m and 19m in 3 holes and 23m to 26m in one
|2||Baryte||Mouza: Chuna PS
Kashipur, Dist purulia
|66 tonnes (upto
assumed depth of 1m) / 334
|Not Determined||1.01 km away||Host rock is Gneissic .|
Mahatomara-Bandulahar-Taldih, PS Jhaldah, Dist Purulia
|1.32 Mahatomara: 0.72 mi. tonnes (upto 21 m depth), Bandulahar:
0.15(upto9.5m depth) Taldih:
0.45 (upto 6.8m depth)
|Kaolinite in nature, plasticity
moderate , blending with plastic clay is required for body composition.
|2.28 km away||Surface
covered by laterite. Clay occurs
between the depths 1.40m & 21.35m b.g.l. in Mahatomara
area, 1.80m & 9.55m b.g.l. in Bandulahar area and 1.55m & 6.81m b.g.l. in Taldih area
with variations in colour and composition.
PS Manbazar, Dist Purulia
|0.389 ( upto 49
m)[ Intercalated White Clay (0.136 million tonnes) & Dark Grey Clay (
0.253 million tonnes)]/323
plastic, beneficiation and application
of masking glaze required.
|1.27 km away||Intercalated
Clay bands (strike length : 700m) occur along TPSZ sandwitched between CGG
and Iron Ore Stage of rocks. Probably derived from kaolinization of granitic
|5||Do||Mouza: Hankasara, PS Jhalda, Dist
|0.3 mi. tonnes (approx.)||After
beneficiation quality of clay shows
good plasticity which may be used in the formation of body composition by
blending with more plastic clay.
|3.80 km away||Maximum thickness of clay bed is reported as
9.78m. Allthe clay deposits occur within the granitic terrain by
kaolinization of feldspar.
|6||Do||Mouza: Katachua and around
Belpahari, P.S. Belpahari, Dist West
|Upto a vertical depth of 15m bgl :
0.14 mi. tonnes (Katachua), 0.24 mi. tonnes (Kadamdiha), 0.037 mi. tonnes
(Chirugora) , 0.015 mi. tonnes (Balichu) and 0.12 mi. tonnes (Banspahari)
|Washing clay of: Katachua yields 18% of Grade-I, 16% of
Grade-II and residue 66%. Moderate to low plasticity; Kadamdiha yields 16%
Grade-I, 46.5% Grade-II and residue 37.5%. Low plasticity by hand feel. Clay of Chirugora and Balichua: hard and semi-plastic
of Katachua appears to have originated from granite mainly. Formation of clay
in other areas are mainly from the alteration of Phyllitic rocks.
|7||Do||Mouza: Gagnabad, PS Kashipur, Dist Purulia||2.07 (upto 7m depth approx)/ 324||Ferruginous, moderately plastic,
beneficiation and application of masking glaze required
|0.38 km away||Product
of kaolinisation of feldspar in granitic rocks. Country rocks include Granite
gneiss, Biotite granite, with Pegmatite,Vein Quartz and Amphibolite. Regional
strike : N80°W-S80°E & Dip : 55° – 70°.
|8||Do||Mouza: Dalimbhija, PS Sarenga,
(upto 6m depth) Overburden: 0.5m to 3.0m
to moderate with off-white colour. Blending with suitable plastic clay and
using masking glaze required, for using in pottery, stone wares etc.
clay deposit occurs as pockets under the lateritic cover of about 0.5 to 3m
thick as overburden. Clay is associated with weathered mica schist in this
area. The clay have been formed possibly after the kaolinization of feldspar
Tipan, Mouza: Lakhyatapol, PS Simlapal, Dist Bankura
|0.05 upto 5.79m
depth b.g.l.. Overburden 0.50 to 2.00m
to greyish and yellowish white with brown and at places reddish patches clay
of medium to high plasticity, low fusible which can be used , after wsahing
and proper blending with more plastic clay , for making low cost ceramic
products and pottaries.
|0.50 km away||The
extent of clay mineralization covers an area of 0.04 sq km. The area is
characterized by granite gneiss, pegmatites and laterite. Under the laterite
capping, clay occurs in major part of the area. At places, clay is exposed at
the surface. The clay belongs to the Archaeans and is supposed to form due to
the kaolinization of feldspar of pegmatite and granite.
|10||Do||Mouza: Makdumnagar, PS Mohd.
Bazar, Dist Birbhum
|The estimated reserve is 0.1
million tonnes approx. upto to the depth of 6 meters with an average
thickness through out the area of about 48,000 sq. m.
|The colour of crude clay varies
from off-white to light cream & light buff.As per CGCRI the plasticity of
beneficiated clay is very good & blending with suitable plastic clay
would be absolutely necessary to develop adequate workiability & dry
strength for handling the wares.The clay may be utilised in potteries, making
tiles, stone wares etc.
|Forest boundary map not available.||The
clay possibly formed by the kaolinisation of feldspar of granite gneiss occur
under the overburden of laterite/lateritic gravel, alluvium & sandy soil
at places, which varies from 2.1m to 4.95m.
|11||Dolomite||Mouza: Boch, PS
Manbazar, Dist Purulia
tonnes (upto 60m depth, inclusive of
all grades) [Grade I: 0.13, II: 0.18 & III: 0.74]
>45(Grade-I), 40-45(Grade II) & 40(Grade III); Acid insoluble%: <5
(Grade-I), 5-10(Grade II & 10-30(Grade III)
|2.78 km away||Dolomite
bands and lenses occur within a hillock of E-W trend and dipping 50o-70o northerly which are interbedded with meta-sediments(mainly phyllites) with occasional
presence of specks of chalcopyrite & pyrite . The hillock lies in the
east of Tamakhun.
|12||Quartz||Mouza: Janipur, PS
Boro; Dist Purulia
|1.46 (upto 20 m depth)/334||SiO2>99%; Fe2O3 approx 0.5%||0.50 km away||Strike
length -80m width : 50m.. Quartz veins occur within the mica-schist &
|13||Do||Mouza: Gobindapur PS Barrabazar,
|Recoverable reserve: 62,400
|SiO2: 98.64% to 99.18%; Fe2O3: 0.42% to 0.73%||1.77 km away||Strike
length -100mX avg width : 25m. Quartz veins occur within Schistose
|14||Do||Mouza: Berada, PS Barrabazar, Dist
|153,000 tonnes (upto 20m
|SiO2 > 99%; Fe2O3 approx 0.5%||5.56 km away||Strike
length -140mX avg.width : 30m.). Quartz veins occur within the mica-schist
|15||Do||Mouza: Kendapara, PS Belpahari,
|3.36 ( upto 20 m depth)/334||SiO2: 97.5% to 99.6%;||mostly within the forest||Strike
length -450mX width : 100m.(Garpahar) & 550mx130m.(Kendapara). Quartz veins occur within the mica-schist
Cheradungri and Purnapani-Parasia Query sectors under Ghoraduba &
Purnapani Mouzas (near Chhendapathr
village) of Ranibandh (presently Barikul) P.S. of Bankuraq
district. Chhenda pathar area, PS Ranibandh, Dist Bankura
1,73,063 tonnes of Tungsten Ore upto a vertical depth of 20m. [ Thanpahar : 82,012 tonnes,
Cheradungri : 42,564 tonnes & Purnapani -Parasia: 48,487 tonnes].
|0.15% WO3 in average.||1.27
bearing pneumatolytic and hydrothermal quartz vein system is hosted by the
meta-sediments and meta-volcanics of the Proterozoic Singbhum Group which
were subjected to deformation, metamorphism and hydrothermal activity in a
number of tectonic phases. Besides wolframite bearing quartz veins, tungsten
is significantly concentrated also in metapellites and metavolcanics. The
area is also characterized by the presence of other ore minerals like
magnetite, ilmenite, haematite, goethite, cuprite, arsenopyrite, pyrite,
pyrrhotite, chalcopyrite, galena, malachite, azurite, massive copper,
chalcocite and covellite. In addition
to tungsten the area also yields significant quantities of Cu, Bi, Mo and Pb.
|Note : The Resources may be considered for further prospecting / Exploration of higher level as per guidelines of UNFC.|