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Ghana
Homase Mine

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 Location:
34 Km S from Kumasi, Ghana

  Address:
2nd Floor International House 41 The Parade St Helier
Jersey
United Kingdom
JE2 3QQ
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Processing
  • Smelting
  • Crush & Screen plant
  • Heap leach
  • Carbon in column (CIC)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life5 years (as of Jan 1, 2019)
30 November 2021 - GoldStone Resources Limited (AIM: GRL), is pleased to announce that it has now successfully completed its first commercial gold pour at the Homase Mine.

The Group commenced mining operations in May 2021, following the pre-stripping and clearing of the Homase Mine site. As announced on 13 May 2021, the planned gold production for the first eight months from commencement of mining now exceeds the Group's original guidance of 14,400 ounces per annum, stated in the DEP, to produce some 25,000 ounces of gold, at a total cash cost, pre-tax, of under US$600per ounce for the thirty metre pit.
Latest NewsGoldStone Resources Ltd: Gold Production and Gold Loan Update     November 30, 2021


Owners

Source: p. 46
CompanyInterestOwnership
GoldStone Resources Ltd. 100 % Indirect

Deposit Type

  • Sedimentary - Volcanogenic
  • Vein / narrow vein


Summary:

The property is underlain by the Ashanti gold belt, one of the world’s most significant Proterozoic gold belts discovered to date. The belt is the most prominent of the five Birimian Supergroup gold belts found in Ghana and is predominantly comprised of sedimentary and mafic volcanic rocks. The Brimian terranes in the southern part of the West African craton are several different volcano-sedimentary formations including metamorphosed volcanic, sedimentary and plutonic rocks and low-grade metavolcanics and metasediments. Two types of granite are present, one is more resistant to weathering than the other, with the less-resistant granite containing gold mineralization.

Mineralized shears are found close to the contact with harder metamorphosed and metasomatically altered geology forming the Upper Birimian volcanics. Two main ore types are present at AKHM hosted within quartz veins and sulphide ores. Subsurface investigation within the mineralized trend undertaken by Ashanti Goldfields revealed a wide zone of shear about 800m long, 14m wide between 255m and 70mRL elevation. Shear mineralized zone metasediments dip sub-vertical or steeply to the NW and strike NNE.

Comparable features of Birimian mesothermal gold mineralization between Obuasi and AKHM (Akrokeri-Homase) include quartz veins and mineralization in graphitic shear zones, along with visible gold occurring in fractures within a quartz veins. Most of the gold is contained between these graphite-rich shears and thin quartz-chlorite units within sheared metasediments.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Homase Mine, set within its AKHM project in Ghana, consists of five open pits, targeting the oxide resource to a vertical depth of 30 metres.


Crushing and Grinding


Processing

  • Smelting
  • Crush & Screen plant
  • Heap leach
  • Carbon in column (CIC)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Flow Sheet: Subscription required

Summary:

The company will be treating the oxides from the Homase Mine on the heap leach processing facility and retreating the tailings from the former Akrokeri Mine that closed in 1909, with results from an auger drilling showing three blocks of viable mineralized zones to a depth of three meters with an average grade of 2.27g/t and estimated tonnages of 91,000t. Metallurgical testwork indicated tailings are amenable to the cyanide heap leach process with an overall recovery of 73%. GoldStone expect to recover up to 5,000oz from these tailings over the life of mine.

CommodityParameter

Production:

CommodityUnitsAvg. Annual (Projected)LOM (Projected)
Gold oz 14,40072,000
All production numbers are expressed as metal in doré.


Reserves at September 30, 2019:

CategoryTonnage CommodityGradeContained Metal
Measured 1.61 Mt Gold 2.24 g/t 116,000 oz
Indicated 4.41 Mt Gold 1.73 g/t 245,000 oz
Measured & Indicated 6.01 Mt Gold 1.87 g/t 361,000 oz
Inferred 4.56 Mt Gold 1.64 g/t 241,000 oz
Total Resource 10.6 Mt Gold 1.77 g/t 602,000 oz


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 29, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
GoldStone Resources Ltd: Gold Production and Gold Loan Update November 30, 2021
GoldStone Resources Ltd.: Environmental Permit Granted February 12, 2021

Aerial view:

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