andesine

[ an-duh-zeen ]

noun

1. a mineral, intermediate in the plagioclase feldspar group, having a play of colors and usually found as crystals in igneous rocks.

andesine

/ ˈændɪˌziːn; -zɪn /

noun

1. a feldspar mineral of the plagioclase series consisting of an aluminium silicate of sodium and calcium. Formula: NaAlSi 3 O 8 .CaAl 2 Si 2 O 8

andesine

/ ăn′də-zēn′ /

1. A white, gray, green or yellow mineral of the plagioclase feldspar group. Andesine occurs in igneous rocks such as andesite and diorite. Chemical formula: (Na,Ca)(Si,Al) 4 O 8 .

Word History and Origins

Origin of andesine¹

1860–65; named after Andes; -ine ²

Word History and Origins

Origin of andesine¹

C19: from the Andes (where it is found) + -ine ¹

Example Sentences

These intermediate members are the lime-soda felspars known as oligoclase, andesine, labradorite and bytownite.

From Project Gutenberg