Elwa Road, Monrovia, Liberia +231 771 109 655 contact@aaminerallab.com
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Professional Mineral & Gem Testing Services

Comprehensive testing and certification for all your precious minerals, gemstones, and metals.

Gold Purity Testing
Gold Purity Testing

Accurate karat determination and fire assay for precise gold purity analysis you can trust.

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Gold Purity Testing

Gemstone Identification
Gemstone Identification

Full gemological analysis to identify species, variety, treatments, and origin of your gemstones.

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Gemstone Identification

Diamond Verification
Diamond Verification

Screening and testing to confirm natural, treated, or synthetic diamonds with full grading reports.

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Diamond Verification

Precious Metal Analysis
Precious Metal Analysis

Testing of platinum, silver, palladium, and other precious metals for purity and composition.

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Precious Metal Analysis

Mineral Composition Testing
Mineral Composition

XRF analysis and other advanced methods to determine full elemental composition of minerals.

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Mineral Composition

Certification & Valuation
Certification & Valuation

Official certified reports for insurance, sale, export, or personal documentation of your valuables.

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Certification & Valuation

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Gold Purity Testing

Our gold testing service provides accurate and reliable determination of gold purity and karat. Whether you are a miner, jeweler, trader, or individual, we help you verify the true value of your gold.

What We Test
  • Gold bars, nuggets, and dust
  • Gold jewelry and ornaments
  • Gold coins and bullion
  • Scrap gold and dental gold
  • Gold-bearing ore samples
Testing Methods Used
  • Fire Assay (Cupellation): The most accurate method for determining gold content — the industry gold standard.
  • XRF Spectrometry: Non-destructive testing that provides rapid, precise elemental analysis.
  • Acid/ Touchstone Testing: Traditional method for quick karat verification.
  • Electronic Gold Testers: For immediate preliminary results.
Who Needs This Service?
  • Artisanal Miners: Verify your gold's purity before selling to buyers.
  • Jewelers: Confirm karat and quality for manufacturing and retail.
  • Gold Traders & Exporters: Get official documentation for transactions.
  • Individuals: Check the authenticity of inherited or purchased gold items.
Turnaround Time
  • XRF Testing: Same day results
  • Fire Assay: 24–48 hours
  • Rush service available upon request
What You Receive
  • Detailed purity report with karat and percentage
  • Official A.A Mineral certificate
  • Weight and composition breakdown
  • Recommendations for selling or further processing
Why Test With Us?
  • ISO-standard testing procedures
  • Experienced certified assayers
  • Confidential and secure handling
  • Trusted by miners and jewelers across Liberia
Request Gold Testing

Gemstone Identification

Our gemological laboratory provides thorough identification and analysis of all types of gemstones. From common stones to rare specimens, we help you understand exactly what you have.

What We Test
  • Rough and uncut gemstones
  • Faceted and polished stones
  • Gemstone parcels and collections
  • Jewelry-set gemstones
  • Suspected synthetic or imitation stones
Testing Methods Used
  • Refractometer: Measures refractive index for species identification.
  • Spectroscope: Analyzes absorption spectra to identify gem materials.
  • Microscope Examination: Detects inclusions, treatments, and synthetic indicators.
  • Polariscope & Dichroscope: Determines optical properties of gemstones.
  • Specific Gravity Testing: Heavy liquids and hydrostatic methods.
  • UV Fluorescence: Short-wave and long-wave ultraviolet analysis.
Who Needs This Service?
  • Gem Miners: Identify and grade your finds for the market.
  • Jewelry Designers: Verify stones before setting in pieces.
  • Collectors & Investors: Document and authenticate your collection.
  • Importers/Exporters: Meet international trade documentation requirements.
Turnaround Time
  • Single stone identification: Same day to 24 hours
  • Multiple stones or parcels: 2–5 business days
  • Detailed origin reports: 5–10 business days
What You Receive
  • Species and variety identification
  • Treatment detection (heating, irradiation, filling, etc.)
  • Synthetic vs. natural determination
  • Quality grade assessment (color, clarity, cut)
  • Official gemological certificate
Common Gemstones We Identify
  • Ruby, Sapphire, Emerald
  • Diamond (rough and polished)
  • Tourmaline, Garnet, Topaz
  • Quartz varieties (Amethyst, Citrine, etc.)
  • And many more precious and semi-precious stones
Request Gemstone Testing

Diamond Verification

Our comprehensive diamond verification service determines whether your diamond is natural, treated, or laboratory-grown. We also provide basic grading to help you understand the quality of your stone.

What We Verify
  • Rough diamonds (all sizes)
  • Cut and polished diamonds
  • Melee diamonds and parcels
  • Jewelry-set diamonds
  • Industrial diamonds
Testing Methods Used
  • DiamondView / UV Fluorescence: Reveals growth patterns indicating natural vs. synthetic origin.
  • Thermal Conductivity Testing: Separates diamond from simulants like cubic zirconia and moissanite.
  • Microscopic Examination: Identifies natural inclusions, laser drill holes, and fracture fillings.
  • FTIR Spectroscopy: Determines diamond type and detects HPHT treatment.
  • Electrical Conductivity: Helps distinguish natural blue diamonds from treated or synthetic ones.
Who Needs This Service?
  • Diamond Buyers: Ensure you're purchasing genuine natural diamonds.
  • Jewelers: Provide verified diamonds to your customers with confidence.
  • Engagement Ring Shoppers: Confirm your diamond is exactly what was promised.
  • Investors: Verify the authenticity of investment-grade diamonds.
Turnaround Time
  • Simulant detection: Same day
  • Natural vs. synthetic verification: 24–48 hours
  • Full grading with treatment detection: 3–5 business days
What You Receive
  • Natural / Treated / Synthetic determination
  • Carat weight measurement
  • Basic color and clarity grade
  • Treatment disclosure (if applicable)
  • Official A.A Mineral diamond certificate
Red Flags We Detect
  • Cubic Zirconia (CZ) and Moissanite simulants
  • HPHT (High Pressure High Temperature) treated diamonds
  • CVD (Chemical Vapor Deposition) synthetic diamonds
  • Fracture-filled or clarity-enhanced diamonds
  • Laser-drilled diamonds
Request Diamond Testing

Precious Metal Analysis

Beyond gold, we test a wide range of precious metals for purity and elemental composition. Our analysis is trusted by traders, refiners, and individuals dealing in silver, platinum, palladium, and more.

What We Test
  • Silver bars, coins, and jewelry
  • Platinum and palladium items
  • White gold and alloy compositions
  • Mixed metal scrap and bullion
  • Industrial precious metal components
Testing Methods Used
  • XRF Spectrometry: Non-destructive, multi-element analysis for rapid results.
  • Fire Assay with ICP Finish: The most accurate method for platinum group metals.
  • Titration: Chemical method for silver purity determination.
  • Specific Gravity Testing: Quick screening method for known alloys.
Who Needs This Service?
  • Scrap Metal Dealers: Accurately value mixed precious metal lots.
  • Jewelry Manufacturers: Verify alloy composition for quality control.
  • Pawnbrokers & Buyers: Confirm metal purity before purchase.
  • Refiners: Get detailed composition data for processing.
Turnaround Time
  • XRF testing: Same day
  • Fire assay for PGMs: 3–5 business days
  • Full multi-metal analysis: 2–4 business days
What You Receive
  • Detailed elemental composition report
  • Purity percentage for each metal
  • Detection of contaminants and base metals
  • Market value estimation (upon request)
  • Official A.A Mineral certificate
Metals We Commonly Test
  • Silver: Sterling (925), fine silver (999), coin silver
  • Platinum: Pt 950, Pt 900, and other alloys
  • Palladium: Pd 950, Pd 500
  • White Gold: Nickel and palladium alloy identification
  • Rhodium-plated items: Base metal verification
Request Metal Analysis

Mineral Composition Testing

Our mineral composition analysis determines the complete elemental makeup of your samples. This service is essential for miners, geologists, and traders who need to understand the exact content of their mineral specimens.

What We Test
  • Ore samples (gold, iron, copper, diamond-bearing)
  • Concentrates and tailings
  • Alluvial and hard rock samples
  • Industrial minerals (bauxite, rutile, ilmenite, etc.)
  • Unknown mineral specimens
Testing Methods Used
  • XRF (X-Ray Fluorescence): Rapid, non-destructive multi-element analysis.
  • Fire Assay with AAS/ICP Finish: Gold and PGM determination at trace levels.
  • Gravimetric Analysis: Classical wet chemistry for major elements.
  • Mineralogical Microscopy: Identification of mineral phases.
Who Needs This Service?
  • Mining Companies: Grade control and resource estimation.
  • Exploration Geologists: Evaluate mineral potential of exploration targets.
  • Artisanal Miners: Understand the value of your mining claims.
  • Mineral Traders: Verify cargo composition before purchase or sale.
  • Government Agencies: Mineral resource assessment and regulation.
Turnaround Time
  • XRF screening: Same day
  • Multi-element package: 3–5 business days
  • Full mineralogical report: 5–10 business days
What You Receive
  • Complete elemental analysis report (ppm and percentage)
  • Gold and precious metal values (g/t or oz/t)
  • Base metal and penalty element concentrations
  • Mineral phase identification
  • Recommendations for processing or further testing
Elements We Commonly Analyze
  • Precious Metals: Au (Gold), Ag (Silver), Pt (Platinum), Pd (Palladium)
  • Base Metals: Cu, Pb, Zn, Ni, Co, Fe
  • Pathfinder Elements: As, Sb, Bi, Hg, Se, Te
  • Major Elements: Si, Al, Ca, Mg, K, Na, Ti, Mn, P
  • Trace Elements: Full suite available upon request
Request Mineral Testing

Certification & Valuation

Our certification service provides official documentation of your precious minerals, gemstones, and metals. Whether you need certificates for insurance, resale, export, or personal records, A.A Mineral delivers professional, internationally recognized reports.

What We Certify
  • Gold bars, nuggets, and jewelry
  • Gemstone parcels and individual stones
  • Diamond lots and single diamonds
  • Precious metal items and scrap
  • Mineral samples and ore shipments
Report Types Available
  • Standard Certificate: Purity/composition with basic identification.
  • Detailed Grading Report: Full quality assessment with grade and measurements.
  • Valuation Report: Market value assessment for insurance, sale, or tax purposes.
  • Export Documentation: Compliance certificates for international mineral trade.
  • Custom Reports: Tailored to your specific requirements.
Who Needs This Service?
  • Exporters: Meet international documentation standards for mineral shipments.
  • Insurance Holders: Provide verified documentation for insuring valuables.
  • Sellers & Buyers: Establish trust and transparency in mineral transactions.
  • Investors & Collectors: Document the authenticity and value of your assets.
  • Legal & Estate Purposes: Official valuation for inheritance, divorce, or legal proceedings.
Turnaround Time
  • Standard certificate: 1–3 business days after testing
  • Detailed grading report: 3–7 business days
  • Comprehensive valuation report: 5–10 business days
  • Express service available for urgent needs
What Each Certificate Includes
  • Unique certificate number for verification
  • Date of testing and issuing
  • Full description of the item or sample
  • Testing methods used
  • Detailed results (purity, grade, composition)
  • Photographic documentation (digital and printed)
  • Official A.A Mineral stamp and authorized signature
  • Market value estimate (valuation reports only)
International Recognition
  • Reports accepted by major international mineral exchanges
  • Compliant with Kimberly Process requirements for diamonds
  • Recognized by insurance companies for valuation purposes
  • Accepted by customs authorities for export/import documentation
Request Certification

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Gold Purity Testing Gemstone Identification Diamond Verification Precious Metal Analysis Mineral Composition Certification & Valuation

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Elwa Road, Monrovia, Liberia contact@aaminerallab.com aaminerallab.com +231 771 109 655 +231 760 984 166
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