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Choose the quartz fraction your process needs

Petra Silicon offers two grades of quartz chips and two finer product categories. Contact the team to confirm the applicable size distribution, chemistry and commercial terms.

Engineered quartz for countertops
Industry example · Stilfehler · CC BY-SA 4.0

Reference photographs show quartz in different forms. Product grades and sizing are specified in the text.

Milky quartz specimen
Milky quartz specimen. Reference photo · Feedmepaperr · CC BY-SA 4.0

A Grade Quartz Chips

Processed quartz chips for customers who specify a coarse feed, size fraction and chemistry limits. Typical enquiry areas include glass, ceramics and engineered surfaces. Share your acceptable size range, impurity limits and intended use.

For coarse feed, specify acceptable upper and lower sizes alongside the chemical requirements. Share the end use so the proposed fraction can be evaluated against your process.

Natural quartz pebbles
Natural quartz pebbles. Reference photo · Mauro Cateb · CC BY-SA 3.0

M Grade Quartz Chips

Processed chips for customer-defined size and quality requirements. Share the intended process and target size fraction so the proposed material can be reviewed against your own acceptance criteria.

When comparing grades, use the available data for the material offered. Confirm size, composition and appearance against your own criteria.

Quartz sand grains
Quartz sand grains. Reference photo · Hi-Res Images of Chemical Elements · CC BY 3.0

Quartz Grit

Fine quartz granules with a nominal range of 0.1–0.4 mm (100–400 µm). For formulation work, request the available sieve profile and identify any limits on undersize or oversize material.

The nominal range helps identify the product category. Where the distribution affects your formulation, ask for the available sieve profile and agree how the limits will be assessed.

Microscope photograph of quartz grains in sandstone
Microscope photograph of quartz grains in sandstone. Reference photo · Michael C. Rygel · CC BY-SA 4.0

Quartz Filler

Milled quartz with a nominal particle size of 40 µm. For blends and formulated products, share the particle-size curve and whiteness requirements you use to qualify new material.

A nominal 40 µm designation is a starting point for evaluation. Ask for available distribution data and state any cut points or whiteness limits that matter to the finished product.

Packing and dispatch

Jumbo-bag packing is used for domestic and export supply. Include volume, destination and desired delivery window in your enquiry.

Discuss the required bag weight, shipment timing and destination with the commercial team. Include any labelling or lot-documentation needs in the request.

Research and development

High-purity quartz is listed as an area of research and development. Contact the company for current status.

Enquiries for tighter purity targets should include the intended application and analytical limits so the team can address the relevant development status.

TECHNICAL ENQUIRIES

Silica enquiries

For glass, ramming mass and other silica-bearing applications, tell us the material form and specification you need. We can discuss the relevant product format and the information available for evaluation.

PRODUCT GUIDANCE

Quartz product FAQs

What is the difference between chips, grit and filler?

Chips are coarse fractions, grit is a finer granular material, and filler is milled to a finer powder. For a purchase enquiry, use the size range and test method required by your process.

Does 40 µm mean all filler particles are smaller than 40 µm?

A nominal size describes the grade in broad terms. Ask for the available particle-size distribution and check the required limits at the relevant cut points.

How should I compare A Grade and M Grade?

Request data for the actual product offered and compare chemistry, size and appearance against your specification. Include your acceptance limits when asking about either grade.

Is high-purity quartz available for solar or electronics?

High-purity quartz is a research and development focus. Contact the company for project updates.

Discuss your requirements

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