Hard Pressed Felt - Cylinders - 12pcs fluorescent Approximate Size for 1 piece:

Approximate Size for 1 piece: 4cm x 2

Approximate Weight of 1 piece: 10g

Ammonite shells are made of the calcium carbonate mineral aragonite

Riebeckite crystals are frequently included within larger crystals of quartz

but there are several other members of the mica family including muscovite and biotite

Hard Pressed Felt - Cylinders - 12pcs fluorescent Approximate Size for 1 piece:Description: Hard Pressed Felt Cylinders Hard Pressed felt is one of the best ways to polish a gemstone. They are long lasting and hold the charge well. The felt can be reshaped to the shape you need. I often run a point inside a ball burr mark until it wears down to a round head and it can be used over and over to polish. There are 4 different head sizes to choose from. Made In: China Head Size: 3mm, 6mm, 8mm, 10mm Shaft Diameter: 2. 3mmOverall