Help! Fluorescent glass (green / red) - d=2.65 approx.

Dear all,

We are looking for a glass that would be fluorescent under UV (green/red), not expensive, with a density of 2.65 approximately (usual glass), which can be crushed to a specific grain size (100 to 300 micrometers).

This is for sediment studies and the quantities required are quite small (less than a ton).

Good scrap glass with these characteristics would also fill the need.

Would you happen to know a company which would product such material?

Many thanks

Best regards

Sebastien