Industrial Minerals

Product Description / Characteristic

Chrysotile asbestos is a serpentine mineral that is notably different from amphibole asbestos (blue asbestos) such as amosite, crocidolite and tremolite. If inhaled, chrysotile or white asbestos is moved from the lung while the amphiboles persist. Therefore it is the blue asbestos, amphiboles that causes asbestosis, lung cancer etc, not chrysotile or white asbestos. Zimbabwe produces chrysotile or white asbestos, a serpentine group asbestos type that is very different in structure and chemical properties from the harmful amphibole group type.

Product Uses

Currently, 90% of all the chrysotile produced globally is used in asbestos cement construction products, including water distribution and sewer pipes, corrugated roofing and building shingles which are products used in infrastructure development. 7% of the product is used in the automotive industry for high friction products like brake lining and clutch facings. The remaining 3% is used in the textile manufacturing industry.

Mine Locations

Shabanie and Gaths Mines are the largest chrysotile producer on the continent. The Mines are located about 390km south of the capital Harare and are 57km apart.

Contact: furusa.o@mmcz.co.zw

Product Description / Characteristic

Aventurine is the trade name of green quartz. It us used for ornamental products & wall tiles.

Mine Location

Jompepi claims in Betbridge.

Product Description / Characteristic

p>Glitterstone is a metamorphic rock which occurs in varying color of grey, pink, green, depending on overlying rocks. It has a micaceaous surface appearance which glitters when hit by the sun’s rays.

Product uses

It is used in tiling, driveways and surfacing of pools. Grades – Paving/ tiles – Cut tiles (minimum 10mm thickness)

Product Description / Characteristic

This is a variety of natural magnesite which is white in color. It has grey to grey silica veins. It is sold in two categories, 50mm to 2kg and +2kg. Grades: These are on the basis of particle size & the bigger the size the more value the material has.

Uses

For making ornaments and tiles

Mine Location

Kadoma

Product Description / Characteristic

This is a relatively rare mineral found in pegmatites, usually associated with lithium bearing minerals like amblygonite and spodumene. It is characterized by its micaceous cleavage and its lilac to pink colour. It is used in the manufacturing of heat resistant glass. Colour: Mainly purple

Product uses

For ornamental eggs and other ornamental items

Mine Location

Bikita, Domboshava

Product Description / Characteristic

Serpentine occurs as an alteration of magnesium silicates especially olivine, pyroxene or amphibole. It is soft and easy to carve to produce ornamental products and other artistic features. Varieties include spring stone, opal stone, cobalt stone and rapoko stone.

Mine Location

Mainly in Guruve Mashonaland West province, Zvishavane and Kwekwe

Product Description / Characteristic

Soapstone is similar to talc in chemical composition but is slightly harder, which makes it ideal for carving. Although it is easy to carve, the finished product is prone to developing chips and scratches as it is soft.

Mine Location

Guruve, Mvurwi, Kwekwe, Nyanga & Zvishavane.

Contact details

chiwambutsa.m@mmcz.co.zw

Product Description / Characteristic

Bentonite is a hydrous aluminium silicate, i.e a clay product which ranges in colour from white to black.

Product Description / Characteristic

Beryl (beryllium Aluminium Silicate) is a mineral which occurs mainly in greisens, pegmatite and hydrothermal deposits. Chemically the mineral can be expressed as Be3Al2(SiO3)6. Beryllium is a lightweight metal used in the manufacture of nuclear reactors; beryllium-copper alloy products used in automotive electronics and computers, undersea communications equipment and pipe products in the oil and gas industry. If you have links or are in any of these industries add to your raw material stocks our common beryl production and you could forget about short shipments and maximise on your transportation costs. Quality and quantity delivered at any one moment is guaranteed.

Mine Location

Karoi, Mberengwa and Buhera

Product Description / Characteristic

It is a barium containing mineral. It is the main source of barium metal. It is often called heavy spar due to its high specific gravity Grades: Barytes is supplied in crude/lump form.

Mine Location

Shamva

Product Description / Characteristic

This is calcium carbonate which occurs in many crystal forms of hexagonal systems & can be translucent, transparent or opaque in various shades of colours.

Product uses

Metallurgical, refractories, industrial filler

Product uses

Energy generation

Contact Person

zindere.g@mmcz.co.zw

Product uses

Refractories and metallurgical uses

Contact

zindere.g@mmcz.co.zw

Product Description / Characteristic

Corundum is an aluminium oxide mineral that occurs in some metamorphic rocks, and in silica-deficient igneous rocks. It is the second hardest mineral after diamond, and hence is used in the manufacture of abrasives. The gem types include ruby and sapphire but these are currently found in poor quality varieties.

Mine Location

Concession

Product Description / Characteristic

Feldspar is a group of aluminium silicate minerals, with potassium, sodium and calcium atoms. This group is further divided into two sub-groups depending on the chemical composition – to Alkali Feldspars and Plagioclase Feldspars. Feldspars are found in igneous, metamorphic and sedimentary rocks.

Product uses

Feldspar is mainly used in the manufacture of ceramics.

Mine Location

Bikita

Product Description / Characteristic

Graphite is a black to grey armorphous rock whose main constituent is carbon & occurs commonly in metarmorphic rocks such as crystalline limestone, schists & gneisses. It is recognisable by its colour, foliated nature & greasy feel.

Product uses

Mainly used for steel fabrication, lead of pencils, foundry facings ,batteries, electrodes, generator brushes & in electrotyping

Mine location

Lynx Mine, Karoi

Product Description / Characteristic

Kaolin is a type of clay formed from the weathering or hydrothermal alteration of aluminium silicates. It is also called china clay, commercially used for the manufacture of pottery & ceramics and as a filler in paper, rubber and manufacture of refractories.

Mine Location

Kadoma

Product Description / Characteristic

Kyanite is a high grade metamorphic mineral formed in the same series with andalusite & sillimanite. It usually occurs in long-bladed, triclinic blue crystals or fibrous masses. It is ideal for high grade refractory bricks due to its high tensile strength.

Product uses

Refractories

Mine Location

Mutoko & Karoi/Hurungwe

Product Description / Characteristic

Mica is a widespread and common on mineral found in granites and pegmatites, and also in metamorphic rocks. It occurs in platy form of various sizes.

Product uses

Electronics, Insulation, Industrial Filler, Paints

Product Description / Characteristic

These are a group of minerals that are relatively hard, dense, refractory & generally occur as accessory minerals in igneous & metamorphic rocks. They are formed from a combination of Oxygen & one or more metals. Colours: Red, Green, Yellow or Black. The colour depends on the oxidised metal.

Product uses

Colour pigment in paints, refractories, pottery and ceramics

Mine location

Mined mainly at Buchwa and around Redcliff / Kwekwe areas in commercial quantities but can be found elsewhere in small quantities.

Product Description / Characteristic

Petalite is a lithium mineral found in pegmatites where it is associated with other lithium bearing minerals such as lepidolite, spodumene, fadarite, hectorite and amblygonite.

Product uses

Glass manufacture and ceramics, electronics, greases, air treatment, rubber, plastics, pharmaceuticals.

Mine Location

Masvingo

Product Description / Characteristic

Pollucite is a caesium bearing mineral that occurs in pegmatites, and is used as a source of ceasiun metal and chemicals.

Mine Location

Masvingo

Product Description / Characteristic

This is a secondary Kaolinite which is highly plastic with a good dry strength. It is grey in colour but fires cream.

Product uses

Used mainly in pottery & ceramic manufacture & also in foundries

Product Description / Characteristic

Silica Sand is a residual product of weathered rocks with the main element being silica (SI02). These are generally Quartzgrains. They are found anywhere around the world, but the one used commercially as a filter media in mined at Industrial Sands, Somabula Farm , just outside Gweru

Product uses

Water filtration, paint & glass manufacture, Ceramics, etc Location: Somabula Farm, Gweru

Product Description / Characteristic

Talc is a secondary mineral resulting from the alteration of magnesium silicates or carbonates. Often white to off-white in colour.

Mine Location

Kadoma Uses: Industrial Filler, cosmetics, pharmaceuticals

Product Description / Characteristic

Vermiculite is a member of the phyllosilicate group of minerals, which resembles mica in appearance. It is found in Zimbabwe at Shawa and Dinhidza Vermiculite Mines located in the Buhera area of Manicaland.

Mine Location

Shawa and Buhera

Current Black Granite Production in Zimbabwe

75% of Zimbabwe is comprised of Granites in different colours and varieties of which 25% is the most sought after Black Granite internationally known as Nero Assoluto. Zimbabwe also hosts several deposits of Black Galaxy or Stargate of which small quantities are currently being mined.

Granite mining in Zimbabwe was initiated about 50 years ago and currently has about 20 companies in operation with an annual production of 200,000 MT of which 5% is being processed in Zimbabwe.

Current operations in Granite are concentrated in the North Eastern Parts of Zimbabwe, notwithstanding the fact that Granite deposits are dotted all over the country.

Production of black granite commenced in the early 70's in Zimbabwe. It was not until around 1974 that the character of Zimbabwe black granite was recognised on the international market for its rare quality, consistency and decorative tenor. Ever since Zimbabwe's black granite enjoyed favourable international preference.

Processing of Black Granite in Zimbabwe

Product diversification and finish characteristics constitute important integral elements in the sustenance of a viable dimension stone industry. In this regard, opportunities are actively under pursuit to produce and offer the market, a variety of coloured granites and their derivatives consistent with the economic, financial, technological and marketing opportunities for doing so. Encouragement is given to producers to establish beneficiation plants in the form of slab and tile cutting and polishing integrated units. Some companies in Zimbabwe in this regard have already taken initiatives.

It is the strategic objective of the dimensions stone industry in Zimbabwe to further develop a more diverse market base on the strength of the quality and competitiveness of its product range.

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