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castorite
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castorite
ˈcastorite Min. [This mineral and another closely associated with it were at first fancifully named Castor and Pollux.] A variety of Petalite occurring in distinct transparent crystals.1868 Dana Min. 230 Petalite occurs..on Elba (castorite) in detached crystals.
Oxford English Dictionary
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Petalite
Petalite, also known as castorite, is a lithium aluminum phyllosilicate mineral LiAlSi4O10, crystallizing in the monoclinic system.
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Pollucite
It is named for Pollux, the twin of Castor on the grounds that it is often found associated with petalite (previously known as castorite).
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castor
▪ I. castor1 (ˈkɑːstə(r), -æ-) Also 6 castour, 7 -er. [a. F. castor (16th c.) and L. castor, a. Gr. κάστωρ beaver, prob. a foreign word. Cf. Skr. kastūrī musk.] 1. The beaver. (Now rarely used).[1398 Trevisa Barth. De P.R. xviii. xxix. (1495) 789 The Castor hyght Fyber also.] 1547 Boorde Introd. Kno...
Oxford English Dictionary
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pollucite
ˈpollucite Min. [orig. named Pollux (Breithaupt, 1846), being associated with Castor or castorite.] Silicate of aluminium and cæsium, found in brilliant transparent colourless crystals.[1847 Amer. Jrnl. Sc. Ser. ii. III. 430 Pollux resembles castor in crystallographic and physical characteristics.] ...
Oxford English Dictionary
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List of gemstones by species
Olivine
Opal
Fire opal
Moss opal
Painite
Palygorskite
Papagoite
Pargasite
Parisite
Pectolite
Larimar
Pentlandite
Peridot
Periclase
Perthite
Petalite (castorite
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铯榴石
发现
1846年,首次在义大利厄尔巴岛描述,并以卡斯托尔的双胞胎波鲁克斯命名,因为它经常与透锂长石(以前称为「castorite」)一起发现。1848年,卡尔·弗里德里希·普拉特纳的第一次分析没有发现高铯含量,但在1860年发现铯后,1864年的第二次分析能够显示铯榴石的高铯含量。
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