|
|
|
|
| Category:
Collectibles
/
Rocks, Fossils, Minerals
/
Lapidary Materials
|
 |
| Start Price: |
USD 9.99 |
Click Here
to See More
|
| Current Price: |
USD 9.99 |
| Reserve Price: |
- |
| Time Left: |
- |
| Bid Count: |
0 |
| Buy It Now Price: |
- |
| Start Time: |
7/23/2008 |
| End Time: |
7/30/2008 |
| Location: |
Franklin, North Carolina |
|
Sunstone 195 grams rough gemstones cab specimen or semi facet rule shows inches ___________________________ THE GEMSTONES IN THIS AD ARE not stock photos thay are of the gemstones you will receive. _____________________________ ALL GEMSTONES AND ROUGH ARE GENUINE NATURAL GEMSTONES lighting used was standerd 100 watt light bulb. good for cabbing or facet also wire wrap of rough crystals Genuine Gemstones Genuine natural gemstone-not man made _________________________________________________________________________________ Feldspar (aluminum silicates) Types/Color: Bytownite – Pale yellow to brown. Labradorite – Pale yellow to gray with play of color. Orthoclase – Colorless, champagne to yellow. Sunstone – Colorless, champagne, copper inclusions can produce a red or green color. Moh’s hardness: 6-6.5 Refractive index: 1.52-1.568 Critical angle: 41° Specific gravity: 2.5-2.7 Cleavage: Perfect in 3 directions. Fracture: Uneven, somewhat brittle. Dispersion: Low (.012), but the combination of a high polish and minute inclusions can simulate the effect of moderate dispersion. Heat sensitivity: Low Pleochroism: None Birefringence (double refraction): Weak to medium (.005-.01) Crystal structure: Triclinic (bytownite, labradorite and sunstone) Monoclinic (orthoclase). Cutting: Cleavage usually doesn’t present a problem. Sharp corners have the tendency to chip out when cutting. Polishing: Cerium oxide on most common laps. Comments: If cutting an Oregon sunstone with a pocket of color, put the colored area at the culet of the stone. This will impart the color to the rest of the stone. If there is strong shiller, then it will be better to cut the stone as a cabochon. ______________________________ Be sure to add me to your favorites list! Check out my other items! Sign up for PayPal; the fast, easy, and secure way to pay online. 600 cts = aprox 1/4 pound __________________________ All new items under 2.00 are listed directly in the store, to view click the link above 100,s of items in store no repeats. _____________________________________________________ REUTRNS: return for full refund, all lots must be returned whole NO highgrading or part lot returns. _____________________________________________________ Shipping:FREE Powered by eBay Turbo Lister
Place a Bid!
|
HOME
|
|