Mica
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Black Tourmaline in Mica Polished 4mm Round
Bead World Gems
£22.27Approximate beads per strand: 95 What is it: Tourmaline is part of a large group of boron silicate minerals with a wide range of colors. It has a Mohs hardness of 7 to 7.5. History: In the 1500s, a Spanish conquistador of Brazil, washed the dirt from a...£22.27 -
Black Tourmaline in Mica Grade A Polished 8mm Round
Bead World Gems
£33.60Approximate beads per strand: 45 What is it: Tourmaline is part of a large group of boron silicate minerals with a wide range of colors. It has a Mohs hardness of 7 to 7.5. History: In the 1500s, a Spanish conquistador of Brazil, washed the dirt from a...£33.60 -
Black Tourmaline in Mica Grade A Polished 6mm Round
Bead World Gems
£27.93Approximate beads per strand: 65 What is it: Tourmaline is part of a large group of boron silicate minerals with a wide range of colors. It has a Mohs hardness of 7 to 7.5. History: In the 1500s, a Spanish conquistador of Brazil, washed the dirt from a...£27.93 -
Black Mica Polished 12mm Round
Bead World Gems
£21.46Approximate beads per strand: 35 What is it: Mica is a silicate mineral that form in distinct layers. Mica is fairly light and soft, and sheets and flakes of mica are flexible. History: Mica was first mined in India about 4,000 years ago, where it...£21.46 -
Black Mica Polished 10mm Round
Bead World Gems
£19.84Approximate beads per strand: 38 What is it: Mica is a silicate mineral that form in distinct layers. Mica is fairly light and soft, and sheets and flakes of mica are flexible. History: Mica was first mined in India about 4,000 years ago, where it...£19.84 -
Black Mica Polished 8mm Round
Bead World Gems
£14.98Approximate beads per strand: 45 What is it: Mica is a silicate mineral that form in distinct layers. Mica is fairly light and soft, and sheets and flakes of mica are flexible. History: Mica was first mined in India about 4,000 years ago, where it...£14.98 -
Black Mica Polished 6mm Round
Bead World Gems
£11.94Approximate beads per strand: 65 What is it: Mica is a silicate mineral that form in distinct layers. Mica is fairly light and soft, and sheets and flakes of mica are flexible. History: Mica was first mined in India about 4,000 years ago, where it...£11.94 -
Black Mica Polished 4mm Round
Bead World Gems
£10.12Approximate beads per strand: 95 What is it: Mica is a silicate mineral that form in distinct layers. Mica is fairly light and soft, and sheets and flakes of mica are flexible. History: Mica was first mined in India about 4,000 years ago, where it...£10.12