Take your rare earth analysis to the next level with the Alloy Geek Rare Earth Element Reference Material – High, catalogued as AG-REE-HI. Formulated with a concentrated carbonatite matrix and high-purity calcium carbonate, this certified reference material offers a substantial 3.8 wt% LREE concentration—ideal for high-sensitivity instrument calibration and method validation.

Certified under ISO 17034, this material supports calibration for XRF workflows in advanced geochemical, mining, and academic laboratories. The trace and major element profile reflects a representative composition of light rare earth-rich carbonatite deposits.

Key Features:

• ISO 17034 Accredited Reference Material (RM)
• High-Level LREE Content: 3.8 wt% (LREEO: 4.5 wt%)
• Ideal for Method Validation, Calibration, and QA/QC
• Compatible with XRF
• Packaged and Ships from the USA

Applications:

• Instrument calibration for rare earth quantification
• Development and validation of analytical methods
• Quality control in mineral and geochemical laboratories
• Academic research involving high-grade REE samples

Certified Composition:

Major Elements (wt% and Oxide Equivalents):

*Iron reported as Fe₂O₃ (ferric oxide equivalent)
LREE: Light Rare Earth Elements total
LREEO: Total as Oxides

Loss on Ignition (LOI): 30.4 wt% (110 °C to 1000 °C)

Trace Elements (mg/kg):

Produced to ISO 17034 with ISO/IEC 17025 Accredited Chemical Testing in an ISO 9001 Certified Quality Management System.