Please ID these two types of garnet

I hope someone out there knows the names of these two varieties
of garnet.  One type forms rhombic dodecahedron crystals; actually,
more than one type does, as I have seen both green and red garnet
crystals in this shape.  The other type forms crystals that have
24 kite-shaped sides.  This shape is sometimes incorrectly called
a trapazeohedron; the correct name, which no one ever uses, is
"kite icosotetrahedron".  Does anyone know which varieties of
garnet form these two crystal habits?

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