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Ontario Geological Survey
Permanent Link to this Record:
MDI31E01SE00021
| Record Name(s) | Harcourt Graphite Mine - 1986, National Graphite Ltd. - 1915, Space Minerals Ltd. - 1965, New York Graphite - 1912, Rinaldi Graphite Property - 1988, Frobisher Ltd. - 1951 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1981-Oct-23 |
| Date Last Modified | 2024-Jan-30 |
| Created By | |
| Revised By |
Primary Commodities: Graphite, Gold
Secondary Commodities: Silver
Township or Area: Cardiff, Cardiff, Cardiff
Latitude: 45° 4' 23" Longitude: -78° 10' 7.59"
UTM Zone: 17 Easting: 722860 Northing: 4994966 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31E01SE
Point Location Description: pit
Location Method: AMIS Site Visit
Access Description: South off of Highway 648 northeast of Wilberforce onto 4x4 road opposite east end of Upper Cardiff Lake. Walk up hill to tailings area and old mill site. Follow road to right up hill above mill site to ridge with open cuts and adit.
1912: New York Graphite Company - test pitting, DD, in production. 1915: National Graphite Limited - property acquired by National Graphite Limited. 1951: Frobisher Limited - Black Donald Division - DD-23-4270 ft. 1965: Space Minerals Ltd. - DD- 4. 1981: A.T. Griffis - mapping, ground geophysics, DD-6-299 m, core analysis. 1988: R. Rinaldi - DD-2-400 ft. 2016: Geology and mineralization of old workings mapped by the Municipality of Highlands East.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Cardiff #32 | 31E01SE0086 | 31E01SE0086 |
| 2.4392 | 31E07SW0002 | 31E07SW0002 |
| 85 | 31E01SE0078 | 31E01SE0078 |
| 2.4473 | 31E01SE0023 | 31E01SE0023 |
| 63.5447 / OM88-9-I-279 | 31E01SE9437 | 31E01SE9437 |
| 2.56874 | 20000014567 | 20000014567 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gneiss-Unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Marble | 2 | Host |
Nov 07, 2013 (A Wilson) - Most of the rocks are well foliated~ banded and interbanded. Banding in the diopsidic unit included some cyclical compositional and size gradation banding. Contacts between the rock units were generally gradational or assimilated and parallel to the gneissocity. The rocks were generally well foliated; the units were locally massive. Folding was visible - particularly in the calcareous unit; there were also displacement folds. Displacement of bands and shearing was fairly common in the units. Some serpentine, graphite, sulphides and calcite enrichment appeared to be related to shearing or fracture-filling. Breccias varied from a calcareous matrix to a sulphide and/or graphite rich matrix.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Allanite | Economic | Gangue | ||||
| 3 | Apatite | Economic | Gangue | ||||
| 4 | Goethite | Economic | Gangue | ||||
| 5 | Jarosite | Economic | Gangue | ||||
| 6 | Pyrite | Economic | Gangue | ||||
| 7 | Titanite | Economic | Gangue |
Nov 07, 2013 (A Wilson) - Crystalline aggregates and grains of several minerals occur with the graphite. They include: colourless, light yellow and grey clinopyroxene; colourless to grey columnar scapolite; brown titanite; yellow to orange chondrodite; black tourmaline; amber mica; colourless to light green apatite; dull green serpentine; colourless to light green clinoamphibole, purple fluorite (rare); orange-red to brownish red garnet; and magnetite, pyrite, pyrrhotite and molybdenite. Rozenite occurs as white encrustations on rusty crystalline limestone. Reddish sunstone occurs in pegmatite. Diamond drilling by Space Minerals Ltd in 1965 intersected 11 - 18 feet of graphite. The flake graphite is up to 1/8 inch in size. At surface, the graphitic zone strikes N60ºE and dips 10-23º to the southeast. The drilling indicates that at the easterly end the zone continues but is lower grade, and pitches to the south. It is open down dip to the south and along strike. Assays from historical drill core returned gold values up to 0.24 g/t over unspecified lengths and silver values up to 1.5 g/t also over unspecified lengths. Graphite concentrations from the historic core returned values ranging from 0.37% Cg over 0.5 m to 11.8% Cg over 0.25 m. Graphite occurs as fine to coarse-grained disseminations, and graphitic bands millimeters to centimeters wide. Graphite was generally more abundant in the green diopside gneiss and calcareous gneisses and less abundant in the biotite and granitic gneisses. The amount of graphite was also dependent on depth in the cores. Where graphite mineralization was observed in the pits, it generally consists of a seam of heavily mineralized flake graphite up to a foot or more thick with disseminations on either side. This heavily mineralized seam varies from a few inches to about a foot, generally a horizontal distance of 10 - 15 feet or less. Hole 88-1, drilled at -90º (vertical), intersected acid and basic paragneiss with varying amounts of flake graphite, sulphides (pyrite and pyrrhotite) and carbonate (calcite). Seams of semi-massive graphite were observed and a six inch section estimated at 90% graphite was intersected. The main zone of graphite mineralization, some 67 feet wide, has excellent correlation with the section drawn on the 1951 drill holes. Most of the graphite is medium fine to coarse medium grained (l mm-10 mm) recrystallized flake graphite. Hole 88-2, drilled at -SO 0 on a line with 1951 hole Nl (azimuth 330º), intersected a similar section of rocks and mineralization. More lost core was experienced in this hole, possibly because the hole is slightly closer to the scarp face or a fault was encountered. The width of the main graphite zone was fifty-one feet in this hole. A six inch seam of 80% graphite was observed which probably correlates with the high grade band observed in 88-1.
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 366 | 18 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| National Graphite Property | 1955 | Unclassified | 1463107 | IMR 020 | 1440000 tons @ 4.1% Cg; to a depth of 250 ft downdip within this orebody there is a richer zone of 800 000 tons grading 5% Cg | Graphite 4.1 % |
Book - Rocks and minerals for the collector: Bancroft - Parry Sound area and southern Ontario; Geological Survey of Canada, Miscellaneous Report 39
Publication Number: Misc Rep 39 Page: 37-39 Date: 1986
Author: Sabina, A.P.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/121046
Part - Mineral occurrences in the Haliburton area
Publication Number: ARV52-02 Page: 41 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of Cardiff and Faraday townships
Publication Number: ARV66-03 Page: 46 Date: 1998
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Graphite in Ontario
Publication Number: IMR020 Page: 20 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Granitic pegmatites of the Bancroft area, southeastern Ontario
Publication Number: OFR5717 Page: 74 Date: 1990
Author: Goad B.E.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Wilberforce Area
Publication Number: P3526 Scale: 1:50,000 Date: 2003
Author: Lumbers S.B., Vertolli V.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Cardiff and Faraday townships, counties of Haliburton and Hastings, Ontario
Publication Number: M1957-01 Scale: 1:31,680 Date: 1998
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Statistical review
Publication Number: ARV22-01.001 Page: 49, 139-140 Date: 1998
Author: Gibson T.W.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Mines of Ontario
Publication Number: ARV25-01.003 Page: 39 Date: 1998
Author: Sutherland T.F., Collins E.A., McMillan J.G., Bartlett J.
Publisher Name: Ontario Bureau of Mines
Location:
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 12, 91 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
Map - Haliburton area, Province of Ontario
Publication Number: ARM52A Scale: 1:126,720 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
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