

1.Description
Ponza
(pumice) is a lightweight volcanic rock formed from rapidly cooled lava,
characterized by its porous structure and very low density. Naturally abrasive
and highly absorbent, it is used in a variety of industrial, agricultural, and
decorative applications. It is available in natural beige, brown, or red hues.
2. Technical Characteristics
Property | Details |
Origin | Volcanic (igneous) rock |
Color | Beige, |
Structure | Highly porous, lightweight |
Density | ~0.6 – 0.9 g/cm³ |
Water Absorption | High (up to 50%) |
Abrasiveness | Moderate |
pH Neutrality | Generally neutral |
Fire Resistance | Excellent |
Thermal Insulation | Very high |
3. Applications
- Agriculture & Horticulture: Soil
aeration, drainage improvement, root oxygenation - Construction: Lightweight concrete, thermal
and acoustic insulation - Water Filtration: Biological filter media for
ponds and aquariums - Industrial Use: Lightweight filler, abrasives,
stone-wash textile industry - Landscaping & Decoration: Ground cover, garden paths,
decorative mulch - Animal Bedding: Absorbent substrate in pet
enclosures
4. Available Formats
- Natural or colored (red, brown)
pumice - Grain sizes:
- Fine: 1–3 mm
- Medium: 3–10 mm
- Coarse: 10–50 mm
- Form: Crushed, irregular gravel, or
blocky pebbles - Packaging: Bulk or bagged
(customized on request)