Title: Growth method of colour crystal
Application Number: 89106859 Application Date: 1989.11.25
Publication Number: 1052154 Publication Date: 1991.06.12
Approval Pub. Date: Granted Pub. Date: 1993.01.13
International Classifi-cation: C30B7/08,C30B29/18
Applicant(s) Name: Shangdong Univ. Address:
Inventor(s) Name:
Attorney & Agent: SUN JUN LI JIANKANG
Abstract:
     Smelting class quartz is used as raw material and K2CO3 as flux. After small quantity of K2Cr2O7, or Fe2(SO4)3.XH2O, or 2CoCO3.3Co(OH)2.XH2O is blended, a yellow, or green, or yellowish brown crystal is growing at a speed of 0.2-0.8 mm/day under a definite temp and pressure. Said colour crystal is directly dyed without use of radiation, and can be used for jewelry, decoration of lamps and lanterns, high-grade glasses, etc.
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