Precious stones are those which, because of their beauty, hardness, and rarity, are prized for use in ornamentation, especially in jewelry. The diamond, ruby, sapphire, and emerald are the only stones which are, strictly speaking, entitled to be called "precious" in this sense; but the opal, on account of its beauty, is often classed with the precious stones, as is also the pearl, which is really not a stone, but a secretion of a shellfish.
Bloodstone or Heliotrope
Lapis-lazuli or Lazuli
Rock Crystal or Mountain Crystal
From The Standard Dictionary of Facts, The Frontier Press Company, Buffalo, N.Y., 1923.
“Now to him who is able to do immeasurably more than all we ask or imagine, according to his power that is at work within us,”
– Ephesians 3:20