Gold and lapis lazuli are found in other parts of the island.
The inner face .of the arches, with the spandrils and the pilasters which support them, are covered with flowers and foliage of delicate design and dainty execution, crusted in green serpentine, blue lapis lazuli and red and purple porphyry.
The imperial parks and gardens cover 1680 acres; the chief of them is the "old" garden, containing the "old palace," built (1724) by Rastrelli and gorgeously decorated with mother-of-pearl, marbles, amber, lapis lazuli, silver and gold; the gallery of Cameron adorned with fine statues and entrance gates; numerous pavilions and kiosks; and a bronze statue (1900) of the poet Pushkin.
Aluminium silicates are widely diffused in the mineral kingdom, being present in the commonest rock-forming minerals (felspars, &c.), and in the gem-stones, topaz, beryl, garnet, &c. It also constitutes with sodium silicate the mineral lapis-lazuli and the pigment ultramarine.
The badges of the other four classes are round plaques, the first three with indented edges, the last plain; in the second class the dragons are in silver on a yellow and gold ground, the jewel is a cut coral; the grades differ in the colour, shape, &c., of the borders and indentations; in the third class the dragons are gold, the ground green, the jewel a sapphire; in the fourth the silver dragons are on a blue ground, the jewel a lapis lazuli; in the fifth green dragons on a silver ground, the jewel a pearl.