Diagram showing the internal crystal structure, and direction of rutile growth (arrows) that forms the star...details inside!

Faceting Designs - The Gemology Project

Faceting tool

When selecting your #diamond, choose one of the following symmetry grades:

Faceting peridot can produce beautiful jewelry pieces and highlight the brilliance of this gem. Learn a new faceting design and three tips for cutting peridot.

Lapidary Machine - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document provides instructions for building a low-cost lapidary machine using common household items. A used 1/3 to 1/2 HP motor with a 1/4 or 5/8 inch shaft is installed on a motor base made from a 5-gallon bucket. A plastic dish pan serves as a water basin and is attached below the bucket. Water supply and drainage lines are added. Flat laps or grinding wheels can be mounted on the motor shaft to shape and polish stones. Safety precautions like ground fault protection are emphasized.

Round bead or briolette design with two crowns. RI 1.54, 96 index.