Blue stone is a generic mineral description commonly applied to a variety of minerals. Perhaps the most common reference is to the hydrated copper(II) sulfate mineral, chalcanthite. The name "blue stone" is also applicable to lazurite, the core constituent of lapis lazuli, a sulfide of sodium aluminium silicate in the sodalite group.
The term bluestone is also used for the dolerite stones at Stonehenge.
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Famous quotes containing the words blue and/or stone:
“But the lark is so brimful of gladness and love,
The green fields below him, the blue sky above,
That he sings, and he sings; and for ever sings he—
‘I love my Love, and my Love loves me!’”
—Samuel Taylor Coleridge (1772–1834)
“It was a cruel city, but it was a lovely one, a savage city, yet it had such tenderness, a bitter, harsh, and violent catacomb of stone and steel and tunneled rock, slashed savagely with light, and roaring, fighting a constant ceaseless warfare of men and of machinery; and yet it was so sweetly and so delicately pulsed, as full of warmth, of passion, and of love, as it was full of hate.”
—Thomas Wolfe (1900–1938)