Sodium Feldspar & Albite High-Whiteness · Na₂O ≥ 9.5% By Aalok Overseas India

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Posted by Admin on April, 26, 2026

Mineral Export Intelligence · Aalok Overseas India

Sodium Feldspar & Albite
High-Whiteness · Na₂O ≥ 9.5%

Premium-grade Soda Feldspar — also marketed as Albite, Sodium Feldspar, and White Feldspar — exported from Rajasthan, India by Aalok Overseas. Engineered for ceramic body stability, glaze brightness, and consistent batch fusion across tiles, sanitaryware, porcelain tableware, and technical ceramics.

#SodaFeldspar#SodiumFeldspar#Albite#Na2O9.5#HighWhitenessFeldspar#RajasthanMinerals#IndianFeldspar#CeramicMinerals
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Key Performance Indicators
≥ 9.5%
Na₂O Content
(Sodium Oxide)
85–92
Whiteness Index
(GE / ISO)
< 0.10%
Fe₂O₃
(Iron Oxide)
1100–1150°C
Fusion / Melting
Range
48 hrs
Sample Dispatch
Turnaround
Mineralogy & Composition

What is Sodium Feldspar (Albite)?

Sodium Feldspar — mineral name Albite — belongs to the plagioclase feldspar series and is characterised by its dominant sodium content, expressed as Na₂O in XRF analysis. It is the sodium end-member of the albite–anorthite series (Ab₁₀₀ in pure form) and typically occurs in pegmatite and granite formations across the Ajmer, Bhilwara, and Sirohi belt of Rajasthan, India.

Unlike Potash Feldspar (Orthoclase / Microcline), Sodium Feldspar melts at a lower and broader temperature range — typically 1100–1150°C — making it especially valuable in fast-fire wall tile and floor tile body formulations where lower kiln energy cost is a competitive priority for ceramic manufacturers.

Chemical Formula: NaAlSi₃O₈ | Crystal System: Triclinic | Mohs Hardness: 6 – 6.5 | Specific Gravity: 2.60 – 2.63 | Colour (calcined): White to Cream-White

Technical Datasheet

XRF Chemical Specification — Aalok Overseas Sodium Feldspar

ParameterAalok Typical ValueIndustry BenchmarkUnit
SiO₂ (Silica) 67.0 – 69.5 65 – 70 %
Al₂O₃ (Alumina) 19.0 – 21.0 18 – 22 %
Na₂O (Sodium Oxide) ≥ 9.5 8.5 – 10.5 %
K₂O (Potassium Oxide) 0.5 – 1.5 < 2.0 %
Fe₂O₃ (Iron Oxide) ≤ 0.10 < 0.15 %
TiO₂ (Titanium Oxide) ≤ 0.05 < 0.10 %
CaO (Calcium Oxide) 0.3 – 0.8 < 1.5 %
LOI (Loss on Ignition) 0.3 – 0.8 < 1.0 %
Whiteness Index (GE/ISO) 85 – 92 80 – 88 GE
Mesh / Fineness (standard) 200 mesh / 325 mesh Custom available
Packaging 25 kg / 50 kg PP Bags or Bulk Jumbo As per buyer

* All values verified by XRF analysis. CoA dispatched with every shipment. Custom mesh sizes available on request.

Technical Deep Dive

Why Na₂O ≥ 9.5% Is the Decisive Parameter

Ceramic body and glaze formulators often focus on silica or alumina ratios — but in sodium feldspar, the Na₂O percentage is the single most commercially important specification. Here's why it dominates procurement decisions:

Flux Efficiency

Na₂O is a more aggressive flux than K₂O at standard firing temperatures. Higher Na₂O means lower firing temperature and faster glass-phase formation — directly reducing kiln energy consumption per tonne of product.

Glaze Surface Finish

In glaze formulations, higher Na₂O improves fluidity and surface shine without requiring additional zinc oxide or calcium carbonate — simplifying batch chemistry and reducing input cost per square metre.

Whiteness Link

High-purity albite deposits with Na₂O ≥ 9.5% tend to be lower in Fe₂O₃ and TiO₂ by geological association. The mineralogical purity that drives high Na₂O also delivers the 85–92 GE whiteness that sanitaryware and porcelain buyers demand.

Batch-to-Batch Reliability

Sourced from a fixed, dedicated mine — not multi-source aggregation — Aalok's sodium feldspar maintains Na₂O within a narrow band shipment to shipment, eliminating reformulation costs triggered by supplier variation.

⚠ PROCUREMENT CAUTION

Sodium Feldspar labelled as "soda feldspar" in the market can vary from Na₂O 7.5% to 11.5%. Without XRF CoA on every consignment, a buyer may unknowingly accept material with Na₂O below 8.5% — which will behave closer to a calcium plagioclase and underperform as a flux. Always specify minimum Na₂O in your purchase order and request batch-level XRF reports, not catalogue specs.

Market Intelligence

Industry-Wise Application of Sodium Feldspar

Industry SegmentRole in ProcessCritical ParameterExport Markets
Wall & Floor Tiles Body flux; lowers sintering temperature; promotes glass phase Na₂O ≥ 9.5%; Fe₂O₃ < 0.10% Vietnam, Indonesia, Malaysia, Bangladesh
Sanitaryware / Vitreous China Body maturation, densification; glaze adhesion promoter Whiteness 88+; LOI < 0.8% Sri Lanka, Turkey (Kütahya), GCC
Porcelain Tableware Translucency enhancement; reduces warpage through uniform glass phase Fe₂O₃ < 0.08%; whiteness ≥ 90 Vietnam (Bình Dương), Indonesia (Pasuruan)
Frit & Glaze Manufacture Flux in frit batch; controls thermal expansion; surface gloss modifier Na₂O consistency; low K₂O < 1.5% Turkey, Malaysia, GCC
Technical / Industrial Ceramics Electrical insulators, laboratory ware body composition Al₂O₃ ≥ 20%; TiO₂ < 0.05% Bangladesh (Gazipur), Malaysia
Glass & Fibre Glass Alkali source; reduces melting temperature; improves workability Na₂O + K₂O ≥ 10%; Fe₂O₃ < 0.12% GCC (Ras Al Khaimah), Bangladesh
Buyer Decision Guide

Sodium Feldspar vs Potash Feldspar — Which Should You Use?

Both minerals are feldspars — but they are NOT interchangeable without body reformulation. The choice hinges on your firing profile, glaze target, and end-product specification.

CriterionSodium Feldspar (Albite)Potash Feldspar (Orthoclase)
Dominant Alkali Na₂O ≥ 9.5% K₂O ≥ 10–11%
Melting / Fusion Range 1100–1150°C (Lower) 1150–1250°C (Higher)
Glass Phase Formation Faster, more fluid Slower, more viscous
Thermal Expansion Higher (requires COE matching) Lower, more stable
Best For Fast-fire tiles, frits, glazes, glass Sanitaryware, fine porcelain, insulators
Whiteness Range 85 – 92 GE 85 – 92 GE
Aalok Supply Link Soda Feldspar → Potash Feldspar →
Export Intelligence

Country-Wise Buyer Profile — Sodium Feldspar Markets

🇻🇳 Vietnam
BÌNH DƯƠNG · ĐỒNG NAI · HÀ NỘI

One of Asia's fastest-growing ceramic tile hubs. Buyers seek low Fe₂O₃ soda feldspar for fast-fire wall tile lines. Price-sensitive but increasingly quality-focused as export orders to Europe rise. Key query terms: tràng thạch natri, fenspat natri.

🇮🇩 Indonesia
PASURUAN · SIDOARJO · JAKARTA

Significant sanitaryware and floor-tile production base. Buyers need consistent Na₂O + whiteness for vitreous china bodies. Indonesian procurement managers search feldspar natrium, soda feldspar Indonesia.

🇲🇾 Malaysia
IPOH · SEREMBAN · SHAH ALAM

Mix of tile manufacturers and frit/glaze producers. Prefer 200 mesh standard fineness with consistent chemistry. Procurement searches: feldspar natrium, sodium feldspar Malaysia.

🇹🇷 Turkey
KÜTAHYA · ESKİŞEHİR · ÇANAKKALE

One of the world's largest porcelain tableware exporters. Technical buyers specify mineralogy-level detail. Turkish query terms: sodyum feldispat, albit, düşük demirli feldispat.

🇧🇩 Bangladesh
GAZIPUR · NARSINGDI · CHITTAGONG

Growing ceramic tile and tableware sector. Cost-efficiency plus quality improvement drive Indian feldspar imports. Search terms: সোডা ফেল্ডস্পার, সোডিয়াম ফেল্ডস্পার.

🇦🇪 GCC / UAE
RAS AL KHAIMAH · DUBAI · JEDDAH

Sanitaryware and tile production hubs serving Middle East construction boom. Arabic search terms: الفلسبار الصودي، الألبيت، فلسبار الصوديوم.

🇱🇰 Sri Lanka
EKALA · BIYAGAMA · RATMALANA

Sanitaryware and tableware exporters with strict whiteness requirements for EU market compliance. Sinhala: සෝඩා ෆෙල්ඩ්ස්පාර්.

Quality Diagnostics

Production Defects Caused by Substandard Soda Feldspar

If your ceramic body or glaze shows any of these defects, inconsistent or under-specified feldspar chemistry is frequently the root cause — before firing temperature or forming variables are blamed.

⚠ Glaze Crawling

Likely cause: Inconsistent Na₂O between batches. Glaze surface tension varies, causing the melt to bead and pull away from the body during firing.

⚠ Pinholes / Pitting

Likely cause: Elevated LOI or impurity carbonate inclusion. Gas release during firing cannot escape closed glaze melt, creating surface pits in the fired tile.

⚠ Yellowish Body Tone

Likely cause: Fe₂O₃ above 0.15% or TiO₂ above 0.10% in feldspar. Both impart warm coloration incompatible with high-whiteness sanitaryware and porcelain specifications.

⚠ Warpage & Shrinkage Variation

Likely cause: Variable alkali oxide ratio (Na₂O + K₂O) across consignments shifts the glass phase onset temperature, causing dimensional inconsistency in the fired body.

Aalok Overseas provides XRF-verified Certificate of Analysis with every shipment and a 48-hour sample dispatch for pre-order qualification testing. Our dedicated mine sourcing eliminates the batch-to-batch variation that causes the defects above.

Logistics & Trade

Supply Chain — From Rajasthan Mine to Your Port

ParameterDetail
Mine Location Rajasthan, India (dedicated single-mine sourcing)
Processing Plant Rajasthan — crushing, grinding, sizing, quality control
Export Ports Mundra Port (primary) · JNPT / Nhava Sheva
Packaging Options 25 kg PP bags · 50 kg PP bags · Jumbo Bags (600–1000 kg) · Bulk
Minimum Order 1 × 20 FCL (full container load) · Sample lots available
Payment Terms T/T in advance · L/C at sight (for established buyers)
Documents Provided XRF CoA · Packing List · Commercial Invoice · B/L · Certificate of Origin · MSDS
Sample Dispatch Within 48 hours of request confirmation
Global Search Terms

Sodium Feldspar — Multilingual Industry Keywords

Procurement managers, R&D heads, and raw material buyers search for this mineral in their native language. Aalok Overseas supplies to all of these markets.

🇻🇳 Vietnamese
tràng thạch natrifenspat natrialbitfenspat trắng
🇮🇩 Indonesian / Malay
feldspar natriumsoda feldsparalbit putihmineral keramik
🇹🇷 Turkish
sodyum feldispatalbitdüşük demirli feldispatseramik hammaddesi
🇸🇦 Arabic
الفلسبار الصوديالألبيتفلسبار الصوديوممواد السيراميك
🇧🇩 Bengali
সোডা ফেল্ডস্পারসোডিয়াম ফেল্ডস্পারঅ্যালবাইট
🇨🇳 Mandarin Chinese
钠长石苏打长石陶瓷原料低铁长石
🇰🇷 Korean
소다 장석나트륨 장석알바이트
Buyer FAQ

Frequently Asked Questions — Sodium Feldspar Export

Q: What is the difference between Sodium Feldspar and Soda Feldspar?

These are the same mineral — the terms are used interchangeably in the ceramics trade. The scientific mineral name is Albite. In commerce, "Soda Feldspar" emphasises the sodium (Na) dominance, while "Sodium Feldspar" is the more formal chemical designation. All refer to NaAlSi₃O₈.

Q: Can I use Sodium Feldspar as a direct replacement for Potash Feldspar in my body?

Not without reformulation. Soda feldspar has a lower and broader melting range than potash feldspar and a higher thermal expansion coefficient. A direct replacement without adjusting the silica/alumina balance and glaze COE will cause crawling, shivering, or warpage. Our technical team can advise on substitution ratios for your specific body formula.

Q: What is your minimum order quantity and lead time?

Minimum order is 1 × 20-foot FCL (approximately 25–28 MT). Samples are dispatched within 48 hours. Standard container shipment lead time from Rajasthan to Mundra port is 3–5 working days; sea transit depends on destination port.

Q: Do you provide XRF Certificate of Analysis with every shipment?

Yes. A batch-specific XRF CoA is provided with every consignment — not a generic catalogue spec. You receive the actual tested values for the specific production lot loaded in your container. Third-party testing arrangements can also be accommodated on request.

Q: Can you supply custom fineness (mesh size) beyond standard 200 and 325 mesh?

Yes. We can process to custom mesh requirements including coarser grades for body crushing applications and ultra-fine grades for glaze and frit manufacture. Please specify D50 or mesh requirement with your enquiry. Custom mesh products carry a lead time premium.

Hashtag Cloud
#SodaFeldspar#SodiumFeldspar#Albite#WhiteFeldspar#Na2O9point5#HighWhitenessFeldspar#FeldsparIndia#RajasthanMinerals#CeramicMinerals#CeramicRawMaterials#TileManufacturing#SanitarywareMinerals#GlazeMaterials#FritManufacturing#PorcelainTableware#AalokOverseas#FeldsparExporter#IndiaExports#MineralExporter#LowIronFeldspar#XRFVerified#CeramicGlaze#VietnamCeramics#IndonesiaCeramics#TurkeyCeramics
Get In Touch

Request a Sample or Quotation

Our export team responds within 24 hours. Samples dispatched within 48 hours of confirmation. XRF CoA provided with every enquiry response.

Ms. Ankita Agrawal
Director — Exports & International Relations
Aalok Overseas India
Product Website
www.feldsparindia.com
Company Website
www.aalokoverseas.com

sodium feldspar · soda feldspar · albite · white feldspar · Na₂O 9.5% · high whiteness feldspar · low iron feldspar · ceramic feldspar · feldspar India · Rajasthan feldspar · feldspar exporter India · potash feldspar · quartz powder India · mineral exporter Rajasthan · ceramic raw materials India · wall tile minerals · sanitaryware minerals · glaze minerals · frit minerals · porcelain raw materials · albite export India · soda spar · plagioclase feldspar · NaAlSi3O8

© Aalok Overseas India · www.feldsparindia.com · www.aalokoverseas.com · All specifications subject to XRF verification · Rajasthan, India



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