Teal Hematite Matte Tube Beads 4mm x 2mm £2.25 Quantity: at £2.25 each 5 in stock. Matte Teal Hematite Tube Beads. These lovely little tubes shaped beads measure approximately 4mm x 2mm with a 1mm hole though the length of the tube. They have a lovely matte finish instead of the usually shiny finish associated with hematite. Description: Matte Teal Hematite Tube Beads Size: Approx 4mm x 2mm Material: Non Magnetic Hematite Quantity: Approx 100 beads per strand.