Mica
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Black Tourmaline in Mica Polished 4mm Round
Bead World Gems
R$137.27Approximate 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...R$137.27 -
Black Tourmaline in Mica Grade A Polished 8mm Round
Bead World Gems
R$207.15Approximate 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...R$207.15 -
Black Tourmaline in Mica Grade A Polished 6mm Round
Bead World Gems
R$172.21Approximate 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...R$172.21 -
Black Mica Polished 12mm Round
Bead World Gems
R$132.28Approximate 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...R$132.28 -
Black Mica Polished 10mm Round
Bead World Gems
R$122.29Approximate 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...R$122.29 -
Black Mica Polished 8mm Round
Bead World Gems
R$92.34Approximate 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...R$92.34 -
Black Mica Polished 6mm Round
Bead World Gems
R$73.63Approximate 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...R$73.63 -
Black Mica Polished 4mm Round
Bead World Gems
R$62.40Approximate 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...R$62.40