Process of making high quality single quartz crystal using silica glass nutrient

Claim 1

A process of manufacturing ultra high purity quartz crystals, said process comprising the steps of: a. obtaining silica nutrient having very few impurities therein; b. providing at least one quartz seed; c. providing a sealable container having a positionable baffle therein and means for holding said at least one quartz seed, said container, said baffle and said holding means being made of a noble metal, said container being placable in a hydrothermal autoclave; d. placing the silica nutrient in a nutrient zone being a bottom section of the sealable container; e. putting a baffle over the nutrient zone and below a seed zone; f. attaching the at least one seed in the seed zone being in a top section of the container; g. filling the container with a fluid; h. sealing the container; i. placing the sealed container in a chamber of the hydrothermal autoclave; j. filling the void between the sealed container and the autoclave with a fluid; k. sealing the autoclave; l. heating said nutrient zone in a controlled manner; m. heating said seed zone in a controlled manner, said nutrient zone having a negative temperature gradient to prevent convection transport with respect to said seed zone during an initial heating before crystal growth; n. growing quartz about the seed wherein the nutrient zone is at a higher temperature than said seed zone, said nutrient zone having a positive temperature gradient to encourage convention transport with respect to said seed zone; o. cooling the autoclave; and p. removing at least one quartz crystal from the autoclave.