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Achirite, see Dioptase.
Achroite, see Tourmaline.
Actinolite, see Cat's-eye.
Adamantine spar, see Corundum.
Adularia, see Orthoclase.
Agate, see Quartz.
A g a t i z e d wood, see Quartz.
Alabaster, see Gypsum.
Alaska diamond, see Quartz.
Alexandrite, see Chryso-beryl.
Allanite.
Almandite, see Garnet.
Amazonstone, see Micro-line.
Amber.
Amethyst, see Quartz.
Amethyst (Oriental), see Corundum.
Anatase, see Octahedrite.
Ancona ruby, see Quartz.
Andalusite.
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Andradite, see Garnet.
Anhydrite.
Apatite.
Aphrizite, see Tourmaline.
Apophyllite.
Asteria, see Corundum.
Asteria, see Quartz.
Aquamarine, see Beryl.
Aragonite, see Carbonate of Lime.
Arkansite, see Brookite.
Automolite, see Spinel.
Aventurine, see O 1 i g o-clase.
Aventurine, see Orthoclase.
Aventurine, see Quartz.
Axinite.
Azurite.
Balas ruby, see Spinel.
Banded agate, see Quartz.
Barite.
Basanite, see Quartz.
Beekite, see Quartz.
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