Advance your rare earth element analysis with the Alloy Geek Rare Earth Element Reference Material - Med, also known as AG-REE-MED. This Reference Material (RM) is expertly manufactured from a blended carbonatite ore and Georgia-sourced calcium carbonate, delivering a reliable total light rare earth content of 0.74 wt%.

Certified under ISO 17034 and suitable for XRF, this mid-level REE standard is optimized for calibration, quality control, and method validation in geochemical and industrial laboratories.

Key Features:

• ISO 17034 Reference Material
• Light Rare Earth Element (LREE) Content: 0.74 wt%
• Compatible with XRF
• Made in the USA with High Purity CaCO₃ and LREE Ore
• Backed by Alloy Geek’s Expert Support and Same-Day Shipping

Applications:

• Instrument calibration and standardization
• Rare earth element method validation
• Quality assurance for geochemical labs
• Analytical research involving LREE in carbonate rock matrices

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): 40.4 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.