Best Pleochroic
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1
Indicolite is a rare blue variety of elbaite tourmaline, highly prized for its saturated hues and commercially mined in notable deposits across Brazil and Afghanistan.
2
Andalusite is an aluminum nesosilicate mineral named after Andalusia, Spain, known for its distinct pleochroism and chiastolite cross-shaped variations.
3
Kunzite is a pink to lilac variety of the mineral spodumene, discovered near Pala, California in 1902 and subsequently named after the renowned American gemologist George F. Kunz.
4
Iolite is a silicate mineral also known as cordierite, famously utilized by Viking navigators as a polarizing lens, or sunstone, to determine the sun's position on overcast days.
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