Highlights of Gold Recovery Results
Ten one kilogram representative samples were analyzed at
All tested combinations of grades, host rocks, sulphide content and alteration styles recovered a very high percentage of total gold, within a four percent range from 95.2% to 99.2%. While high-grade gold samples recovered the highest percentage of total gold during cyanidation, sub-gram low-grade gold mineralization nonetheless achieved excellent recoveries of greater than 95 percent.
LP Fault gold mineralization is not refractory. All samples, regardless of grade, were described as 'free-milling', indicating gold is not encapsulated in sulphide accessory minerals. Free gold mineralization has repeatedly been observed and reported by
Ongoing Metallurgical Testing
The samples reported here represent the most mineralogically complex intervals drilled to date at the LP Fault and have higher accessory sulphide content than the zone's average. In most gold deposits, zones with higher sulphide content have lower gold recoveries than zones with lower sulphide content.
Accessory sulphide content had no measurable effect on gold recoveries, confirming that gold is not present within sulphide mineral crystal structures.
Autoclave processing will not be required for LP Fault mineralized material.
Additional gold recovery testing of low-sulphide material is now also underway, which is expected to yield comparable high gold recoveries.
Ongoing testing also includes 'gold-only' LP Fault mineralization such as that observed within high-grade intervals in LP Fault discovery drill hole DNW-011 where gold is observed without significant accessory sulphides in many samples. In most gold deposits, gold-only mineralization yields the highest gold recoveries.
Gravity gold recovery circuits are important, low-cost components of many gold processing operations. Due to the free gold character of all grade ranges of LP Fault mineralization, the mineralized material is expected to be amenable to gravity-based gold separation. Gravity amenability is currently being tested by
Results of ongoing metallurgical testing will be reported periodically as completed through 2022.
About the
The 100% owned flagship Dixie project boasts one of the largest recent gold discoveries in a Canadian mining jurisdiction. Proximal to major infrastructure near the town of
23 high-grade domains are structurally and geologically distinctive from the surrounding lower grade, bulk tonnage style gold mineralization. Together, they span a strike length of 4.2 kilometres and occur within larger stratigraphically controlled lower grade domains. They are characterized by high degrees of strain and/or transposed quartz vein zones following two distinct structural fabrics and transition from upper greenschist to lower amphibolite facies metamorphism. Gold in the high-grade domains is generally observed as free gold, is often transposed into, and overgrows the dominant structural fabrics, and is higher-grade on average than the surrounding bulk tonnage gold zones.
To date,
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Ms.
Tel: 604-646-8354
Email: info@greatbearresources.ca
Web: www.greatbearresources.ca
Cautionary note regarding forward-looking statements
This release contains certain 'forward looking statements' and certain 'forward-looking information' as defined under applicable Canadian and
Forward-looking information are based on management of the parties' reasonable assumptions, estimates, expectations, analyses and opinions, which are based on such management's experience and perception of trends, current conditions and expected developments, and other factors that management believes are relevant and reasonable in the circumstances, but which may prove to be incorrect.
Such factors, among other things, include: impacts arising from the global disruption caused by the Covid-19 coronavirus outbreak, business integration risks; fluctuations in general macroeconomic conditions; fluctuations in securities markets; fluctuations in spot and forward prices of gold or certain other commodities; change in national and local government, legislation, taxation, controls, regulations and political or economic developments; risks and hazards associated with the business of mineral exploration, development and mining (including environmental hazards, industrial accidents, unusual or unexpected formations pressures, cave-ins and flooding); discrepancies between actual and estimated metallurgical recoveries; inability to obtain adequate insurance to cover risks and hazards; the presence of laws and regulations that may impose restrictions on mining; employee relations; relationships with and claims by local communities and indigenous populations; availability of increasing costs associated with mining inputs and labour; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities) and title to properties.
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