Almandine - Wikipedia Almandine, Fe 2+ 3 Al 2 Si 3 O 12, is the ferrous iron end member of the class of garnet minerals representing an important group of rock-forming silicates, which are the main constituents of the Earth's crust, upper mantle and transition zone Almandine crystallizes in the cubic space group Ia 3 d, with unit-cell parameter a ≈ 11 512 Å at
Almandine Garnet Value, Price, and Jewelry Information Almandine is perhaps the most common garnet species Forming series with pyrope and spessartine garnets, these gems occur in the deep brownish or purplish reds most often associated with garnets They make affordable and durable jewelry stones
Almandine Gemstone: Properties, Meanings, Value Benefits Almandine is the most common garnet in jewelry It can be reddish-purple to black with varieties like rhodolite, Mozambique, and Malaya Learn almandine’s meanings, prices, and benefits!
Almandine: Mineral information, data and localities. - mindat. org Almandine-Pyrope Series, Almandine-Spessartine Series Most common garnet Occurs in metamorphic and pegmatitic rocks Visit gemdat org for gemological information about Almandine Approved, 'Grandfathered' (first described prior to 1959)