Diamond is the hardest natural substance known. It is formed deep in the mantle, and is only brought to the surface via kimberlite pipes, lamprophyres , eclogites and other rocks that originate deep within the mantle . It is also found in alluvial deposits, along with quartz , corundum , zircon and other minerals , derived from such rocks, and in certain meteorites .
Yet the stones remain less real to those who cannot name them, or read the mute syllables graven in silica. To see a red stone is less than seeing it as jasper – metamorphic quartz, cousin to the flint the Kiowa carved as arrowheads. To name is to know and remember. Sin embargo, las piedras se vuelven menos reales Para quienes no pueden nombrarlas ni leer Las mudas sílabas sepultadas en el sílice. Ver una piedra roja es menos que verla como jaspe, Metamórfico cuarzo, pariente del pedernal que los kiowa Tallaron como puntas de sus flechas. Nombrar es conocer y recordar.dana gioia
Mother of quartz, your words writhe into my ear.Renew the light, lewd whisper.theodore roethke
Close to 70 percent of all sand grains on the earth are made of quartz.By Michael Welland in p.4 (Sand: The Never-ending Story)
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