Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Mine Life | 5 years (as of Jan 1, 2017) |
Eagle Graphite owns the Black Crystal Graphite quarry, located 35 kilometres west of the city of Nelson in British Columbia, Canada, and 70 kilometres north of the state of Washington. Black Crystal is the only constructed graphite quarry with production history in Western North America.
February 7, 2023 - Trading in Eagle Graphite Incorporated (NEX: EGA) (the "Company", “We”, “Eagle”) shares remains suspended per the Company’s release of October 21, 2022. The Company’s listing has been transferred to the NEX exchange. A process for reinstatement to the TSX Venture exchange can potentially be considered as part of an eventual recapitalizing of the Company. |
Source:
p. 3
In 2006, Eagle Graphite acquired the Black Crystal graphite quarry and processing plant, located 3 km south of Valhalla Wilderness Park on the eastern slope of the Monashee mountains. To date the Company has not earned significant pre-production revenue and is considered to be in the exploration stage.
Contractors
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Summary:
The graphite mineralization found at the Property is best categorized as a disseminated flake graphite deposit according to Simandl and Kenan (1997), who referenced the Property in their paper entitled, “Crystalline Flake Graphite”. These deposits are commonly hosted by porphyroblastic and granoblastic marbles, paragneisses and quartzites in upper amphibolite or granulite grade metamorphic terrains.
Graphite mineralization on the Property is almost ubiquitous, occurring locally in all rock types except for the intrusions. Calc silicate gneisses are the preferred host for the most consistently higher-grade mineralization. The calc-silicate gneisses have been split into two groups (Augsten 2001), Cs1 and Cs2, on the basis of mineralogy (presence or absence of spinel), texture, colour and the concentration of graphite. Cs2 typically contains 2 to 5% flake graphite, or organic carbon, referred to as fixed carbon (FC). Graphite also occurs as discrete disseminated grains most typically from 0.5 mm to 1 mm in diameter. These crystals have developed with a preferred orientation parallel to sub-parallel to foliation. Cs1 typically contained 2 to 3% graphite. While pyrite is fairly common throughout the section, very fine grained disseminated pyrite ± pyrrhotite is common in the graphitic calc-silicate host rock.
A regolith has formed in-situ above both Cs units locally, and there also exists a transition zone of slightly weathered Cs material, which is less fri ........
Summary:
The mining methods as laid out in the 2002 Mine Plan involved a Quarry to be a small seasonally run operation.
Weathered graphitic calc-silicate material would be extracted and transported to the Plant facility. Quarrying would utilize open pit extraction methods.
At present, under Eagle Graphite’s recently submitted Mine Plan, mining would continue to be carried out by open pit methods. The regolith material would be excavated, screened and crushed and transported to the storage transfer station at the base of the mountain. From the station, the material would be transported to the Plant facilities for processing.
Source:
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Flow Sheet:
Summary:
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Projected Production:
Commodity | Units | LOM |
Graphite
|
kt
| 27 |
All production numbers are expressed as concentrate.
* According to 2014 study.
Reserves at May 10, 2018:
Mineral resource statement for the Black Crystal project using 0.70% graphite cut-off grade.
Category | Tonnage | Commodity | Grade | Contained Graphite |
Measured
|
2,987,000 t
|
Graphite
|
1.35 %
|
40,300 t
|
Indicated
|
16,245,000 t
|
Graphite
|
1.35 %
|
218,900 t
|
Measured & Indicated
|
19,233,000 t
|
Graphite
|
1.35 %
|
259,300 t
|
Inferred
|
23,916,000 t
|
Graphite
|
1.3 %
|
310,500 t
|
Mine Management:
Job Title | Name | Phone | Email | Profile | Ref. Date |
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Feb 7, 2023
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Corporate Filings & Presentations:
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