Natural pozzolans

Natural Pozzolans are typically  produced by volcanic eruptions, consisting of high concentrations of amorphous (non-crystalline) silica and aluminum oxides, key ingredients for concrete enhancement



Lassen County, CA
150 Million Tons under Geofortis Control
Historically Proven Resource
Lassenite - Unique Combination of Volcanic Ash and Diatomite
Extremely High Pozzolanic Activity and ASR Mitigation







Located Close to New Plant Site
2,500 Acres under Geofortis Control
Proven Reserves
Volcanic Tephra (ash)
Excellent Pozzolanic Activity and ASR Mitigation
Utah & Idaho DOT Prequalified




Natural Pozzolans for general concrete use are covered under ASTM C - 618, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

Geofortis' Pozzolans exceed the minimum requirements of ASTM C - 618.

Geofortis' Utah Pozzolans are pre-approved by UT and ID DOTs

1 925 272 2600

30 S. Tooele Blvd

Tooele, UT 84074

320 Western Road, Suite 1

Reno, NV 89506


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