Mica
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Black Tourmaline in Mica Polished 4mm Round
Bead World Gems
$28,198.78Approximate 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...$28,198.78 -
Black Tourmaline in Mica Grade A Polished 8mm Round
Bead World Gems
$42,554.52Approximate 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...$42,554.52 -
Black Tourmaline in Mica Grade A Polished 6mm Round
Bead World Gems
$35,376.65Approximate 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...$35,376.65 -
Black Mica Polished 12mm Round
Bead World Gems
$27,173.37Approximate 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...$27,173.37 -
Black Mica Polished 6mm Round
Bead World Gems
$15,124.80Approximate 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...$15,124.80 -
Black Mica Polished 4mm Round
Bead World Gems
$12,817.63Approximate 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...$12,817.63