Properties of beryl single crystals grown by a high pressure hydrothermal method

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Materials Research Bulletin; (USA)

DOI:https://doi.org/10.1016/0025-5408(89)90180-3· OSTI ID:5302107

Furusaki, T; Bando, Y; Kodaira, K ^[1]; Matsushita, T ^[2]

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1. Dept. of Applied Chemistry, Faculty of Engineering, Hokkaido Univ., Sapporo, 060 (JP)
2. Dept. of Electrical Engineering, Kumamoto Institute of Technology, Kumamoto, 860 (JP)

The authors discuss beryl crystals grown under high pressure hydrothermal condition of 1 GPa. The optimum crystal growth was observed at 600{sup 0}C and from 0.1N NaOH solution. The beryl crystals from 0.1 - 0.3N NaOH solutions incorporated water molecules and alkali cations in the channels of the beryl structure. The crystals showed same refractive indices and density as those of natural emerald crystals. These physical properties were very similar to natural emeralds.

• OSTI ID: 5302107
• Journal Information: Materials Research Bulletin; (USA), Vol. 24:8; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BERYL
REFRACTIVITY
MONOCRYSTALS
HYDROTHERMAL SYNTHESIS
CRYSTAL GROWTH
DENSITY
HIGH PRESSURE
MICROSTRUCTURE
SODIUM HYDROXIDES
SOLUTIONS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BERYLLIUM COMPOUNDS
BERYLLIUM SILICATES
CRYSTAL STRUCTURE
CRYSTALS
DISPERSIONS
HYDROGEN COMPOUNDS
HYDROXIDES
MINERALS
MIXTURES
OPTICAL PROPERTIES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SODIUM COMPOUNDS
SYNTHESIS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies