Garnets and mica are everywhere found.
It contains 1300 great pearls, 400 garnets, 90 amethysts, 300 sapphires, 300 emeralds, 15 rubies, 75 balas rubies, 4 topazes, 2 cameos; the gems, except where they have been replaced, are cut en cabochon.
It may be diminished by introducing clippings of platinum foil, pieces of porcelain, glass beads or garnets into the liquid.
The " ruby " sand consists chiefly of fine garnets and magnetites, with a few rose-quartz grains.
Garnets are plentiful in the Lindi district, and agates, topaz, moonstone and other precious stones are found in the colony.
Diamonds are obtained in Borneo, garnets in Sumatra, Bachian and Timor, and topazes in Bachian, antimony in Borneo and the Philippines; lead in Sumatra, Borneo and the Philippines; copper and malachite in the Philippines, Timor, Borneo and Sumatra; and, most important of all, tin in Banka, Billiton and Singkep. Iron is pretty frequent in various forms. Gold is not uncommon in the older ranges of Sumatra, Banka, Celebes, Bachian, Timor and Borneo.
In New Mexico are found turquoises and a few garnets; it seems probable that turquoises were mined by the Aztecs.
The New Mexican garnets are found in McKinley county.
Garnets are found in the Sierra de Gata and in the Sierra Nevada fine marble is quarried.
The diamonds of this district are noted for their purity and lustre, and are generally associated with other crystals - garnets, agates, quartz and chalcedonies.