Mica
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Black Tourmaline in Mica Polished 4mm Round
Bead World Gems
kr312.49Approximate 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...kr312.49 -
Black Tourmaline in Mica Grade A Polished 8mm Round
Bead World Gems
kr471.57Approximate 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...kr471.57 -
Black Tourmaline in Mica Grade A Polished 6mm Round
Bead World Gems
kr392.03Approximate 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...kr392.03 -
Black Mica Polished 12mm Round
Bead World Gems
kr301.12Approximate 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...kr301.12 -
Black Mica Polished 6mm Round
Bead World Gems
kr167.61Approximate 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...kr167.61 -
Black Mica Polished 4mm Round
Bead World Gems
kr142.04Approximate 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...kr142.04