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 Nova Scotia Minerals: Scheelitespacer

Scheelite

SCHEELITE

CaWO4, Calcium Tungstate


Reported Occurence: Waverly/Fall River, Halifax County
UTM (NAD27)
Zone 20
 Northing 4960472
 Easting 451142
Details:
 Historic Mining Activity,  East of Perry Lake aprox 1.5 km south of Fall River exit along Route 102
References:
 NSMOD # D13-021, Messervey Tungsten Pamplet
Further Info:

The veins were discovered early in the 20th century and in 1911-12 the veins were opened by 2 shafts and several trenches. At that time a 4 ton hand-picked sample of mineralized quartz was taken and analyzed.
In 1918 a J. Reynolds reported 50 tons of ore was taken from the site. The work was then suspended until 1925 when the vein was trenched for 65 m. A report by LeDoux and Co. indicated an analyses of 70.85% W, 0.05% As and 0.04 oz/ton Au.
The site remained essentially dormant until 1939-1940 when more tann 300 m of trenching and some underground drifting and crosscutting were carried out.
One of the shafts is reported to be 23 m deep with 18 m of underground development at the 18 m level. The other shaft is thought to be between 9 and 12 m deep.

Other Mineralization:
 Galena, Native Gold, Arsenopyrite

Goffs Scheelite, Halifax County
UTM (NAD27)
Zone 20
 Northing 4969809
 Easting 465135
Details:
 The prospect consists of 3 separate fairly substantial trenches and small open cuts with large waste rock piles along their edges. The workings explored a series of six scheelite-bearing, stratabound quartz veins ranging from minute stringers up to 15 cm on average. The veins occur within a series of northeast-trending outcrop ridges of massive metawacke. The veins intrude along slate and metasiltstone units found interbedded with massive metawacke beds.
References:
 NSMOD #D14-014
Further Info:

 Scheelite-bearing veins were discovered at this site by an Indian prospector named Joseph Cope, in the latter part of World War I (Douglas and Goodman, 1939). He noted scheelite in several quartz veins at this site while prospecting for arsenic. Cope did some trenching on the veins during the 1920's but it wasn't until the prospect was staked by a Ralph Kirkpatrick and some associates in 1931 that a concerted effert was mounted to prospect the veins. By the late 1930's several more veins containing a greater amount of scheelite were uncovered. During this time a few hundred pounds of scheelite were removed (Eardley-Wilmot, 1943).

In 1939 the provincial Department of Mines produced a detailed plane table map of the site and description of the veins (Douglas and Goodman, 1939; MacQuarrie, 1939). It was found that the scheelite occurred in six main stratabound veins within metasiltstone and slate horizons sandwiched between massive beds of metawacke.

Douglas (1956) indicated that after 1939 activity at the site consisted of the sinking of an inclined dhaft in the middle of the 3 trenches. The shaft is about 30 m deep (92 ft.) and sunk on an angle of 65 to the north. He indicated that the early exploration of the site had apparently removed most of the high grade scheelite pockets from the veins and that all that remained were sporadic occurrence of scheelite crystals. Douglas (1956) also indicated that there are 3 exploration pits about 330 m (100 ft.) to the northwest of the main showing. His report provides a map of the location of these trenches They are found east of the small cabin adjacent to the brook 190 m north of the prospect. The were apparantly dug following the northeast-trending strike of bedding. Douglas reports that the western of the trenches is 4 m by 1 m and supposedly produced 200 lbs of scheelite. The second is 4 m long and 0.7 m wide. The third is 4.5 m long, 3.2 m wide and 1 m deep and produced 800 lbs. of scheelite.

Little (1959) reported that, in total, 3 tons of concentrate assaying approximately 72% WO3 was recovered from the site.

Other Minerals:
 scheelite, arsenopyrite, pyrite

Reeves Tin Pit, Lunenburg County
UTM (NAD27)
Zone 20
 Northing 4953870
 Easting 379700
Details:

 The Reeves Tin Pit is located 5.1 km west on the Dalhousie Road (Forties Road) from the village of New Ross, Lunenburg County. The prospect is found within the community of Forties and 0.5 km south of road on the Reeves farm. Reeves is a common name in the New Ross area. The prospect may be reached by going 80 metres south along a woods road that starts at a small man-made pond behind the barn on the Reeve's farm. At that point turn west from the woods road onto a foot path and walk southwest for 120 m to a cleared area. The prospect is located in this cleared area and in 1982 consisted of a water-filled pit, outcrops and overburden dumps (O'Reilly et al., 1982). Since 1982 the pit has been filled in by the land owner but dump material can be found laying about.

References:
NSMOD #A10-004
Further Info:

 Mineralization: Flecks of fluorite and blue-turquoise fluorapatite are common in the pegmatite and associated leucogranite that accompanies the pegmatite. The mineral assemblage that is reported to occur in the central zone of the pegmatite is impressive and includes: cassiterite, amblygonite, lepidolite, fluorite, topaz, tourmaline, beryl, wolframite, scheelite, columbite, durangite, metatorbenite, tapiolite and monazite. A Department of Mines and Energy field check reported in 1982 indicates that most of these minerals are not obvious and only fluorite, lepidolite and fluorapatite were noted (O'Reilly, et al., 1982).

Faribault (1908) reported that a pit was dug in 1903, uncovering cassiterite- and fluorite-bearing quartz boulders. Consequently, digging continued and a shaft was sunk into bedrock with work continuing for the next few years. A pit was sunk (7.5 m deep, 3.6 m long and 3 m wide) on a pegmatitic segregation within light grey leucogranite. The site has been visited by numerous persons since Faribault's time but the dyke was apparently not visible due to the water level in the pit and the fact that much of the outcrop had since been covered over by dump material.

Other Minerals:
  amblygonite, microlite, monazite, morinite, tapiolite, topaz, tourmaline, triphylite, tungstite, wolframite, apatite, fluorapatite, beryl, cassiterite, columbite, durangite, fluorite, lepidolite, metatorbernite


 

Cleavage: dipyramidal, indistinct in two directions and good in another

Colour: white, yellow, orange or greenish gray to brown

Fracture: conchoidal

Hardness: 4.5 - 5

Luster: adamantine to greasy, vitreous

Streak: white

Possible Useage: source of tungsten

More Info: Mineral Gallery, Mineralogy Database

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