Caledonia Mining upgrade to the Mineral Resource and Mineral Reserve at Blanket Mine

Caledonia Mining Corporation Plc (LON:CMCL) has announced an upgrade to the Mineral Resource and Mineral Reserve base at its 64 per cent owned subsidiary, the Blanket Mine in Zimbabwe.[1] Total Proven and Probable Mineral Reserves increased by one per cent to 528,000 ounces (17 per cent increase including depletion of 84,925 ounces since last update) and a 12 per cent increase in total Measured and Indicated Mineral Resources to 902,000 ounces (23 per cent increase including depletion).

The report fully validates the Company’s medium term production profile targeting 80,000 ounces per annum from 2022.  

Minxcon (Pty) Ltd were commissioned by the Company to produce an updated Mineral Resource and Mineral Reserve estimation based upon existing data, but reflecting the completion of Central Shaft, historic mining and taking the opportunity to further digitise data and embrace the latest analytical tools. The report was commissioned based upon data struck at 1 January 2020, albeit its completion was delayed by the impacts of the Covid pandemic.

Commenting on the Mineral Resource and Mineral Reserve update, Steve Curtis, Chief Executive Officer said:

“Today’s announcement marks an additional milestone in the long track record of growing Mineral Resources and successfully converting Inferred Mineral Resources into M&I to keep extending the life of mine at Blanket since its inception in 1906.  A one per cent increase in the Proven and Probable Mineral Reserves and a 12 per cent increase in M&I after mining depletion of 84,925 ounces is a continuation of securing the long-term future of Blanket.

“The reduction in Inferred Mineral Resources is due partly to successful conversion to M&I, at approximately 18 per cent, and partly the lack of deep level exploration over the last 12 months, awaiting the development of new drilling platforms on the lower levels via the recently-commissioned Central Shaft. The latest geological information available, combined with a lower Mineral Resource cut-off grade, from 2.1 grammes per tonne (“g/t”) to 1.5 g/t, due to the higher gold price, added lower grade Mineral Resources, resulting in a reduction in the Inferred Mineral Resources grade. These numbers are independently determined and available in the latest technical report which is being filed today on SEDAR. The lower Inferred Mineral Resources grade is broadly consistent with Blanket’s recently achieved grade, which demonstrates that Blanket can comfortably mine at this grade.

“Now that the Central Shaft is completed, we will have the ability to do more deep level exploration and we expect to replace the depleted Mineral Resources as we continue to go deeper, extending the life of mine while achieving the 80,000 ounce target from 2022 onwards.”

The Mineral Reserve grade of 3.38 g/t remained unchanged from July 2018 with the Mineral Reserve cut-off grade also remaining unchanged at 2.1 g/t.

Total M&I now stand at 8.5 million tonnes at a grade of 3.29 g/t, a 12 per cent reduction in grade although the updated Mineral Resource grade remains consistent with current Blanket run of mine grade.

Inferred Mineral Resources at Blanket have decreased by 10 per cent from 963,000 ounces, as at July 2018, to 866,000 ounces as at January 1, 2020. As mentioned above, the decrease is due to approximately 18 per cent of Inferred Mineral Resources being converted to the M&I category and the lack of deep drilling exploration over the last 12 months awaiting the development of new drilling platforms on the lower levels via the recently commissioned Central Shaft. Lower grade Inferred Mineral Resources were added due to lowering the Mineral Resource cut-off grade to 1.5 g/t from 2.1 g/t as a result of a higher gold price. Total Inferred Mineral Resources now stand at 8.5 million tonnes at a grade of 3.17 g/t. The reduction in Mineral Resource grade is due to a combination of the Mineral Resource cut-off grade being lowered, as mentioned, adding lower grade Mineral Resources in all categories, and an updated interpretation of the ore bodies with additional geological information.

Blanket’s Mineral Resources have grown by approximately 86 per cent since 2011 despite mining over 400,000 ounces over this period.

The table below compares the January 2020 Mineral Resources with the previously stated July 2018 Mineral Resources (refer to news release filed on SEDAR on September 20, 2018).  The January 2020 Mineral Reserves are compared to the previously stated July 2018 Mineral Reserves (refer to Mineral Reserve Calculations in the Company’s annual report on Form 20-F filed on SEDAR on 29 March 2021).

Blanket Total Mineral Resources and Mineral Reserves (effective January 1, 2020)

Mineral Resources       
Mineral Resource CategoryTonnes (Mt)Tonnes (Mt)Grade (g/t)Grade (g/t)Contained Gold (koz)Contained Gold (koz)Contained Gold (koz)
 Jul-18Jan-20Jul-18Jan-20Jul-18Jan-20% change
Measured (M)2.012.733.83.3224529219%
Indicated (I)4.735.793.683.275606109%
Total M&I6.748.533.723.2980590212%
Inferred6.638.494.523.17963866-10%
Mineral Reserves       
Mineral Reserve CategoryTonnes (Mt)Tonnes (Mt)Grade (g/t)Grade (g/t)Contained Gold (koz)Contained Gold (koz)Contained Gold (koz)
 Jul-18Jan-20Jul-18Jan-20Jul-18Jan-20% change
Proven1.211.73.333.3413018341%
Probable3.593.163.43.39393345-12%
Total Proven & Probable4.84.863.383.385235281%

All Mineral Resources for Blanket are shown on a 100% basis; Caledonia owns 64% of Blanket.

Mineral Resources (2020)

Notes:

1.     Cut-off applied 1.5 g/t.

2.     No Geological loss applied for Measured, 5% for Indicated and Inferred.

3.     Gold price: USD1,600/oz.

4.     Mineral Resources are stated inclusive of Mineral Reserves.

5.     Mineral Resources are reported as total Mineral Resources and are not attributed.

6.     All orebodies are depleted for mining.

Mineral Reserves (2020)

Notes:

1.     Mineral Reserve cut-off of 2.1 g/t applied.

2.     The gold price that has been utilised in the economic analysis to convert diluted Measured and Indicated Mineral Resources in the LoM plan to Mineral Reserves is an average real term price of USD1,660/oz over the LoM.

3.     Mineral reserves are reported as total Mineral Reserves and are not attributed.

Click to view all articles for the EPIC:
Or click to view the full company profile:
Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

More articles like this

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia Mining: One country, a world of opportunity

It is said that experience is the best teacher, and NYSE and AIM-listed Caledonia Mining is putting its vast experience of operating in Zimbabwe to good use. Not only is it increasing production at its Blanket gold mine,

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia Mining expanding its operations with acquisitions

Caledonia Mining Corporation which is listed on the United States Dollar Victoria Falls Stock Exchange is on an aggressive shopping spree. The gold miner with operations in Zimbabwe is flush with cash from the high gold price and resulting profitable

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Corporate Presentation September 2022

Caledonia Mining Corporation plc (LON:CMCL) is a profitable cash generative gold producer with a strong growth profile, Caledonia’s primary asset is the Blanket Mine in Zimbabwe.

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Gold prices rise today

Gold prices rose on Tuesday as a pause in the U.S. dollar rally and energy crisis in Europe drove some investors towards the safe-haven bullion. Spot gold rose 0.5% to $1,718.30 per ounce as of 648 GMT. Prices

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia results webinar Q2 2022

Caledonia Mining Corporation plc (LON:CMCL) is a profitable cash generative gold producer with a strong growth profile, Caledonia’s primary asset is the Blanket Mine in Zimbabwe.

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Gold price rally gains steam

Gold prices have pushed to session highs as the housing market, an important pillar of U.S. economic growth, continued to weaken as consumers bought fewer new homes than expected last month. New home sales fell to a seasonally

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

BR Business News: Caledonia Mining

Source: Core Finance Caledonia Mining Corporation plc (LON:CMCL) is a profitable cash generative gold producer with a strong growth profile, Caledonia’s primary asset is the Blanket Mine in Zimbabwe.

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia unveils Zimbabwe gold expansion

Caledonia Mining Corporation today announced a major development in its growth strategy in which it will issue $53.3m worth of shares – about 28.5% of its share capital – for the Bilboes gold project north of Bulawayo in

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Gold gains more than 1%

Gold prices jumped more than 1% on Thursday as a pullback in the dollar and U.S. Treasury yields provided support ahead of a key U.S. jobs report that could influence the Federal Reserve’s policy stance. Spot gold was

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia to purchase Bilboes gold project in Zimbabwe

Gold miner Caledonia Mining has agreed to acquire Bilboes Gold, the owner of the Bilboes gold project in Zimbabwe, in an all-share deal worth $53.3m. Under the agreed terms, Caledonia will issue 5.1 million of its shares, representing 28.5% of

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia Mining offers significant growth potential

Caledonia Mining Corporation has announced record gold production from the Blanket Mine in Zimbabwe for the quarter ended 30 June 2022. All production numbers are expressed on a 100% basis and are based on the final assay at

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia gold production in 29% surge

Gold production at Victoria Falls Stock-Exchange (VFEX)-listed Caledonia Mining Corporation Plc increased by 29% to 38 606 ounces in the first half of this year compared to the same period last year. Last year in the first half,

CALEDONIA MINING CORPORATION PLC COM SHS NPV (DI)

Caledonia Mining declares quarterly dividend of US$0.14

Caledonia Mining Corporation Plc (LON:CMCL) has announced that the Board of Directors has declared a quarterly dividend of 14 United States cents (US$0.14) on each of the Company’s shares. Highlights ·   Company on track to hit target production of

No more posts to show