The shiny silver flakes are mica crystals (muscovite). Mica reflects light strongly and splits into thin shiny sheets, giving that glitter effect.

Silver sparkles → typical for muscovite mica

Light beige/white base → quartz or feldspar matrix

Rough natural shape → raw mineral fragment

No metallic yellow color → not gold or pyrite

• ✅ Quartz + Muscovite (mica schist / pegmatite fragment)