Industrial minerals from the quarries of the UAE and Oman, delivered to your discharge port.

GStone sources limestone, gypsum, dolomite, gabbro, silica sand and aggregates, tests every lot, and ships it in bulk to cement plants, steel mills and contractors across the Indian Ocean.

Request a quote See material specifications
LimestoneCaCO3 GypsumCaSO4·2H2O DolomiteCaMg(CO3)2 Silica sandSiO2 Aggregates and armour rockCrushed rock GabbroMafic igneous rock

Materials and typical specifications

Figures below are typical ranges. Every contract carries its own agreed specification, and each shipment is sampled and analysed by an independent surveyor before loading.

Limestone

High-calcium limestone for clinker production, steel flux, flue gas desulphurisation and quicklime.

Chemistry
CaO 50 to 54%, low MgO and SiO2
Sizes
0-50 mm, 10-50 mm, 50-80 mm, or to order
Used in
Cement, steel, power, lime kilns

Gypsum

Natural gypsum for cement set retarding, plaster and board manufacture, and soil conditioning.

Purity
85 to 95%+ CaSO4·2H2O
Sizes
0-50 mm, 0-80 mm, 0-300 mm lumps
Used in
Cement, plasterboard, agriculture

Dolomite

Calcium-magnesium carbonate for steelmaking, glass, refractories and agricultural lime.

Chemistry
MgO 18 to 21%, CaO 29 to 32%
Sizes
10-40 mm, 20-60 mm, powder on request
Used in
Steel, glass, refractories, fertiliser

Silica sand

Washed and graded silica sand for glass, foundry, filtration and construction chemicals.

Chemistry
SiO2 98%+, low Fe2O3
Sizes
0.1-0.6 mm and graded fractions
Used in
Glass, foundry, filtration, dry mix

Aggregates, armour rock and washed sand

Crushed aggregates, rock boulders and washed sand for concrete, asphalt, breakwaters and reclamation.

Grades
5-10, 10-20, 20-40 mm aggregates
Rock
Armour and core rock, graded by weight
Used in
Concrete, roads, marine works

Gabbro

Dense, hard igneous rock from the Hajar range, valued where strength and abrasion resistance matter.

Properties
High density, low water absorption
Sizes
Aggregates, rail ballast, boulders
Used in
High-strength concrete, rail, asphalt

How a shipment comes together

One contract covers the whole chain, so you deal with one counterparty from the quarry face to your berth.

  1. Specification

    We confirm chemistry, size grading, quantity, laycan and discharge port with your technical and procurement teams.

  2. Sourcing and sampling

    Material is selected from vetted quarries and sampled. Lab results are shared before you commit.

  3. Inland haulage and stockpile

    Trucked to port and stockpiled ahead of the vessel, so loading starts on arrival.

  4. Vessel and loading

    Our chartering desk fixes the right tonnage and supervises loading against the agreed rate.

  5. Survey and documents

    Independent draft survey, sampling and analysis. Bills of lading, certificates of origin and quality issued promptly.

  6. Discharge

    We track the voyage and stay with the cargo until it is discharged and accepted.

Shipping and commercial terms

Chartering sits inside the business, not outside it. That keeps freight competitive and laytime under control on every cargo we sell delivered.

Delivery terms
FOB, CFR and CIF
Vessel sizes
Handysize, Supramax and Ultramax bulk carriers, from part cargoes to full shiploads
Loading ports
Salalah, Duqm and Sohar in Oman. Ras Al Khaimah and Fujairah in the UAE
Payment
Letter of credit or telegraphic transfer, as agreed per contract
Inspection
Independent surveyor at load port, with quality and quantity certificates

Where our cargoes go

  • Oman and UAEWest coast India
  • Oman and UAEEast coast India
  • Oman and UAEBangladesh and Sri Lanka
  • Oman and UAEEast Africa
  • Oman and UAEGCC and Red Sea

About GStone

GStone Minerals is a UAE-based trading company supplying bulk minerals to industry. We were set up by people who have spent their careers in dry bulk shipping and commodity trading, and we built the company around the part buyers find hardest: getting the right material onto the right ship, on time and on specification.

We work directly with quarry owners in the UAE and Oman, and we handle freight ourselves. That means fewer intermediaries, firm quotes on a delivered basis, and one point of contact who knows both the cargo and the vessel.

  • Direct quarry relationships in the UAE and Oman
  • In-house chartering for freight and laytime control
  • Independent testing on every shipment

Request a quote

Tell us the material, quantity and discharge port. We usually reply with an indicative CFR price within one working day.

Emailsales@thegstone.com

Phone+971 58 696 3737
+971 56 230 1984

OfficeFujairah – Twin Towers
P.O. Box 4422, Fujairah, UAE

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