Polycrystalline Silicon fossils - Type: Chalcedony (cryptocrystalline quartz)

- Type: Chalcedony (cryptocrystalline quartz)

Weight: 75 Gram

11 Kg (Avg)

warm tones make it suitable for both everyday wear and formal occasions

Its clarity and structure make it a standout among mineral collectors and enthusiasts

Polycrystalline Silicon fossils - Type: Chalcedony (cryptocrystalline quartz)Weight : 500 Grams (Pkt) Location: Brazil Product Description Polycrystalline Silicon is a manmade material produced by refining silicon into multiple crystal grains, resulting in a metallic grey to bluish appearance with a crystalline, blocky texture. It is typically formed in irregular chunks with reflective surfaces. Manufactured in the USA, this material is composed of high purity silicon and is widely used in industrial and technological