| Culture | Native American: US |
|---|---|
| Country of Origin | China |
Check the listing for details. Opalite Glass Opal LARGE Block Rough Flint Knapping 3.8#. Condition: New, Made in China. Listed at 45.00 USD. This glass was made to resemble real opal. We have sold rough rock and slabs in Quartzsite, Arizona, for over 22 years. 6 1/4" x 4 1/4"-4" x 1.5". This is a similar block you will receive. This material is easily knappable and behaves like glass.