| Home | Rough | Bargains | Equipment | Books | Online Designs | Just Ask Jeff | Order | News List | Contact Me | Links |
| Amethyst | Aquamarine | Beryl | Citrine | Emerald | Garnet | Opal | Peridot | Sapphire | Scapolite | Spinel | Sunstone | Topaz | Tourmaline | Quartz | Zircon |
| Beginner's Page | New Stuff | Odds & Ends | Specials | Parcels | Synthetics |
| Cut Gemstones | Gemological Information | Gemstone Pricing Guides | How to buy Gemstones |
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
"Malt" Squared (QTZ46.JRG)
By Jeff R. Graham
Copyright 1995
72.6% Light Return
Angles for R.I. = 1.54
53 facets + 8 facets on girdle = 61
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.463 T/L = 0.463
P/W = 0.479 C/W = 0.232
H/W = (P+C)/W+0.02 = 0.731
P/H = 0.655 C/H = 0.318
Vol./W^3 = 0.306Addition # 1 - The P3 facets can be cut later, but it’s good to have them roughed in for the P4(G) facets. It helps to have the table in before cutting the C4, they meet. Cut this in refractive indexes 1.54 to 1.93 with no changes. This design is good for light to medium material, 1-8cts.

Random - Cosine - ISO
| Home | Rough | Bargains | Equipment | Books | Online Designs | Just Ask Jeff | Order | News List | Contact Me | Links |