Magnesio-lucchesiite, CaMg3Al6(Si6O18) (BO3)3(OH)3O, a new species of the tourmaline
英语故事短文个人年度工作总结>v脸supergroup
期刊名称： American Mineralogist
年份： 2021年
期号： 第6期
关键词： Magnesio-lucchesiite;new mineral species;lamprophyre dike;O’Grady Batholith;San Piero in Campo;Elba Island;Lithium;beryllium and boron:车钥匙怎么拔下来
Quintesntially crustal
摘要：Magnesio-lucchesiite, ideally CaMg 3 Al 6 (Si 6 O 18 )(BO 3 ) 3 (OH) 3 O, is a new mineral species of the tourmaline supergroup. The holotype material was discovered within a lamprophyre dike that cross-cuts tourmaline-rich metapelites within the exocontact of the O'Grady Batholith, Northwest T
补钙的水果erritories (Canada). Two additional samples were found at San Piero in Campo, Elba Island, Tuscany (Italy) in hydrothermal veins embedded in meta- rpentinites within the contact aureole of the Monte Capanne intrusion. The studied crystals of magnesio-lucchesiite are black in a hand sample with vitreous luster, conchoidal fracture, an estimated hardness of 7–8, and a calculated density of 3.168 (Canada) and 3.175 g/cm 3 (Italy). In plane-polarized light, magnesio-lucchesiite is pleochroic (O = dark brown, E = colorless) and uniaxial (–);
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