Plant
Ceramics and tile
Tile, sanitaryware, and tableware plants use clay, feldspar, silica, and quartz so the body stays plastic and the fire stays predictable.
Industrial minerals
Silica, quartz, kaolin, feldspar, and clay.
For ceramics, glass, foundry, paint, paper, and refractory plants. The grade stays on the mesh, iron, or clay the line already runs.
Scroll to minerals
Products
Silica sand, quartz powder, kaolin, calcined kaolin, feldspar, and clay grades exported by Skylark Exports.
Clients
The plants these grades are packed for. Each line is the use on that industry page, not a customer quotation.
Industries
Industrial minerals Skylark Exports supplies to ceramics, glass, foundry, paint, paper, refractory, and construction plants.
Ceramics and tile
Tile, sanitaryware, and tableware plants use clay, feldspar, silica, and quartz so the body stays plastic and the fire stays predictable.
Glass
Glass batches need silica that stays high and low in iron, plus a feldspar flux whose alkali does not drift.
Foundry
Foundries buy graded silica for moulds and cores, processed bentonite to bond that sand, and refractory clay where the hot face has to hold.
Paints and coatings
Coatings use ground quartz, kaolin, and calcined kaolin for mesh, brightness, and opacity, and processed bentonite when the paint has to hold its body.
Paper
Paper coatings use kaolin for shade and smoothness, and calcined kaolin when opacity has to go further.
Refractories
Refractory and kiln-furniture bodies need fire clay with alumina and a shape that survives temperature.
Construction
Construction uses graded silica sand where grain size and cleanliness matter, and processed bentonite where a borehole or a seal has to hold.
Rubber and plastics
Rubber, plastics, and cable compounds use kaolin, calcined kaolin, and quartz powder as controlled fillers.
What a buyer can count on
The grade stays the same, the packing is named, and the papers match the lot.
GradesProduct pages. Each one shows the typical sheet, not a certificate of analysis.
PlantsIndustries these grades are packed for. Not a list of customers.
StepsSelect, grade, pack, and ship.
Consistency
The same grain, mesh, or grade from lot to lot, so a furnace, mould line, or coating mill is not requalifying every shipment.
Packing
Typical export packing is 25 kg bags, 50 kg bags, 1 MT jumbo bags, or bulk. Which of those a grade is offered in is confirmed on the inquiry.
Lot documents
A certificate of analysis, a packing list, and an invoice describe that shipment.
The gradeChosen for the plant that already runs it.
Your portNamed on the inquiry. No country list is published here.
The grades, the packing, and the papers for a lot. Not partner logos, and not sample certificates.
Buyer notes
How to compare a grade, choose a clay, and write an inquiry a quote can match.
ExportWhat an export inquiry should include
What to include in a mineral export inquiry: the product, the spec limits, the packing, your destination port, and the quantity, so a quote can match the plant.
ApplicationsKaolin and calcined kaolin: which one a coating line actually needs
Hydrous kaolin against calcined kaolin for coatings, paper, rubber, and plastics, and when brightness, opacity, and hardness mean raw clay is not enough.
GradesHow buyers compare silica sand grades
How buyers compare silica sand grades by mesh or AFS grain, iron as Fe2O3, and moisture, and which of the three moves a glass, foundry, or ceramic purchase.
Request a quote
Name the mineral, the limit that matters on your line, packing, and quantity.