pyrope

/pahy-rohp/US // ˈpaɪ roʊp //UK // (ˈpaɪrəʊp) //

火焰弹,烟火,火山石,火药味

Definitions

n.名词 noun

1
- : a mineral, magnesium-aluminum garnet, Mg3Al2Si3O12, occurring in crystals of varying shades of red, and frequently used as a gem.

At least, we might gather from this passage that the poet was aware of the distinction between ruby and carbuncle (pyrope garnet).
In another eclogite boulder, diamond was found partly embedded in pyrope.
Specimens of pyrope with attached or embedded diamond had previously been found in the blue ground of the De Beers mines.
Two varieties of garnet, almandite and pyrope, may exhibit the dark blood-red color especially ascribed to garnet.
Pyrope, the magnesian variety of garnet, does not differ much in color from almandite.