July 30th, 2008 at 8:35am |
The rough piece is first of all reduced to the approximate size and then cut down on a circular saw impregnated with diamond bort. A wheel charged with carborundum is used for the coarse preparatory grinding, and fine cutting requires sandstone. The final stage is the polishing with tripoli on tin, lead, or felt laps, [...]
Read the rest of Agate Carving and Engraving: The Glyptic Worthless Arts continue…
July 30th, 2008 at 8:30am |
Clear crystals make their impact through the magic of color, vividness of luster, and play of light. The enchantment of opaque ornamental stones is kindled by their colors and ravishing color schemes, as well as by the endless array of patterns resulting from their inexhaustible combinations and permutations. Tortuous bands, apparently fortuitously arranged circles, and [...]
Read the rest of Agate Carving and Engraving: The Glyptic Worthless Arts
July 30th, 2008 at 8:11am |
Certainly, it would be interesting for laymen, who probably in their earliest childhood first made acquaintance in fairytales with the magic world of gemstones, to study the role of these self-same stones in the folklore of countries, peoples, and times. However, it was intentional to keep the rational and purely scientific side of gemstones
Read the rest of Appreciation of Gemstones
