Jingui Technology
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Crystalline & fused quartz sand · 4N8–6N

From natural quartz to 6N-grade material.

Crystalline grades reach 6N and fused grades reach 5N8. We match material structure, trace-element content and particle-size distribution to your process, with standard and custom particle-size ranges.

Request a sample →View test results ↓
High-purity quartz sand presented in a clean laboratory dish
High-purity quartz sand · Purity and particle control
Crystalline sample · impurity sum<0.93 ppm
Iron · Fe0.04 ppm
Titanium · Ti0.03 ppm
Lithium · Li<0.01 ppm

Two material structures

Similar purity, different material structures.

4N8–6N describes chemical purity; crystalline and fused refer to the silica structure. We supply both forms and match trace-element content, particle-size distribution and processing properties to your application.

Milky-white crystalline high-purity quartz sand falling into a controlled particle mound
01 / Crystalline structure

Crystalline high-purity quartz sand

Crystalline quartz sand retains the ordered structure of natural quartz. It is a key raw material for fused-quartz crucibles, tubes, rods and other high-purity quartz-glass products. Qualification includes trace elements, inclusions, particle-size distribution and melting behaviour.

Supply
4N8 · 5N · 5N5 · 6N
Control
Trace elements · Inclusions · Melting behaviour
Sizing
Standard ranges or customer specification
Transparent glass-like fused high-purity quartz sand falling into a controlled particle mound
02 / Amorphous glass structure

Fused high-purity quartz sand

Quartz is melted into amorphous glass, then crushed, shaped and classified. Compared with crystalline quartz, fused quartz has lower thermal expansion and greater thermal-shock resistance, making it suitable for dimensional stability and repeated temperature changes.

Supply
4N8 · 5N · 5N5 · 5N8
Control
Purity · Amorphous structure · Thermal behaviour
Sizing
Standard ranges or customer specification

Two foundations for 6N production

High-quality ore.
Purification matched to the material.

We select ore from our wholly owned Myanmar resource for 6N purification. Material-specific processing and laboratory verification help turn this ore into high-purity quartz sand.

Quartz ore from Jingui’s Myanmar mineral resource01 / Source quality

Selected quartz ore with low measured impurity levels.

SPM · RAW ORE

Latest Myanmar raw-ore assay. Concentrations are reported in ppm.

Raw-ore elemental assay · 17 elements
ElementConcentration (ppm)ElementConcentration (ppm)
Al18Ca≤1.2
Cu≤0.1Fe≤1
K≤1Na≤1.5
Li≤1B≤0.5
Mg≤0.1Mn≤0.1
Cr≤0.1Ni≤0.1
Ti≤3Zr≤0.5
Ba≤0.1Ge≤0.1
P≤0.1
Company-supplied SPM raw-ore data, before purification. Values and “≤” symbols follow the supplied table; finished-sand test results are presented separately below.View our Myanmar resource ↗

02 / Purification technology

Start with good ore.
Refine it with precise process control.

Ore characteristics determine the purification sequence. Physical, chemical and thermal treatments are followed by particle-size control and analytical verification.

  1. 01

    Understand the ore

    Identify trace impurities and their occurrence in the mineral.

  2. 02

    Design the purification process

    Select treatment conditions to remove the target impurities and prevent contamination.

  3. 03

    Verify the finished material

    Check composition and particle-size distribution against the selected grade.

SPM · Myanmar raw-ore indicators

Total listed raw-ore impurities
≤28.5 ppm
Sum of upper bounds for the 17 listed elements
Total listed alkali metals
≤3.5 ppm
Sum of stated Li + Na + K upper bounds
Representative finished-sand test<0.93 ppm

Reported sum of 19 measured impurity elements in the crystalline sample.

View the finished-sand test report ↓

Crystalline quartz · Representative third-party test

6N-grade impurity control, element by element.

A 60–160 mesh crystalline high-purity quartz sand sample was tested by the National Quality Inspection and Testing Center for Safety Glass and Quartz Glass. The reported sum of 19 measured impurity elements was below 0.93 μg/g.

Aluminium
0.22 ppm
Boron
0.15 ppm
Calcium
0.08 ppm
Magnesium
0.10 ppm
View all 19 measured elements +

Al 0.22 · B 0.15 · Ca 0.08 · Co <0.01 · Cu <0.01 · Fe 0.04 · K <0.09 · Li <0.01 · Mg 0.10 · Mn <0.01 · Na <0.03 · Ni <0.01 · Ti 0.03 · P <0.04 · Zr <0.02 · Cr 0.03 · Ba <0.01 · Mo <0.01 · Ge 0.03 ppm.

Results from a commissioned test of a representative sample. Values marked “<” are below the method detection limit. Actual supply follows the agreed specification and batch COA.
Watermarked and redacted extract of third-party high-purity quartz sand test results
Test report · Scroll to view
Watermarked and redacted extract of third-party high-purity quartz sand test results
Crystalline 60–160 mesh sample · Redacted report extract

Stable commercial grades

Crystalline and fused quartz.
Four supply grades.

Grades cover both material structures. The 6N grade applies to crystalline quartz sand; fused grades reach 5N8. Composition, particle-size range and acceptance methods are agreed for each grade.

014N8

Industrial high-purity grade

For applications requiring controlled metallic impurities and reliable industrial-scale consistency.

Stable supply
025N

Advanced material grade

Purity and particle control for high-temperature quartz and specialty glass manufacturing.

Stable supply
035N5

Enhanced low-impurity grade

Tighter limits on multiple elements for contamination-sensitive processes.

Stable supply
046N

Ultra-high-purity grade

Sub-ppm measured impurity control for demanding qualification and high-value quartz applications.

Crystalline quartz test results

Particle engineering

Tell us your particle-size requirements.
We tailor the distribution.

We use in-house jet milling and calibrated standard sieves to control particle size. Standard and custom ranges can be prepared for your feeding, forming, melting or filling process.

In-house jet millingCalibrated sievingCustom specification

Standard particle ranges

40–140mesh
50–150mesh
70–200mesh
Customto specification
40–140, 50–150 and 70–200 mesh are standard supply ranges. With our own production equipment, we can also develop custom ranges to an agreed distribution and test method.

Current monthly capacity

Monthly capacity for four quartz sand products.

These figures show current monthly production capacity for supply planning. Available volumes depend on orders, particle-size specifications, packaging and agreed quality controls.

01 / Controlled iron

Low-Iron Quartz Sand

2,400tonnes / month
02 / Radiological control

Low-Radioactivity Quartz Sand

1,800tonnes / month
03 / Amorphous route

Fused Quartz Sand

2,000tonnes / month
04 / Ultra-high purity

6N High-Purity Quartz Sand

60tonnes / month

Planned expansion capacity: 150 tonnes / month

Technical specification

Key parameters for material qualification.

The table outlines the main selection criteria. Grade-specific limits are available in the TDS, sample evaluation results and batch records.

Material structureCrystalline quartz or fused amorphous silica · structural state where requiredXRD / agreed method
Trace-element contentMeasured impurity sum · Al · Fe · Ti · Li · Na · K · B · P · Ca · MgICP-OES / agreed method
Particle-size distributionMesh range · oversize · undersize · D10 · D50 · D90 where applicableSieve / laser diffraction
Process behaviourMoisture · LOI · OH · Melting behaviour · Inclusion or bubble assessment where requiredApplication specific
Batch releaseLot identity · sampling basis · COA · packaging · traceabilityConfirmed before supply

Technical enquiry

Tell us what your process needs from quartz.

Share the application, target composition, particle-size range and expected volume. Our team will review the requirements and advise on the next steps.

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