Leucite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Leucite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | ● |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Where to Buy Leucite
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About Leucite
Leucite is a potassium aluminum silicate feldspathoid mineral, typically forming white to gray pseudo-cubic (trapezohedron) crystals embedded in volcanic lavas, with a vitreous to dull luster. It is found in potassium-rich, silica-poor volcanic rocks such as leucitites, with prominent occurrences at Vesuvius and the Alban Hills in Italy, and in the Leucite Hills of Wyoming, USA. Faceted gem-quality material is extremely rare and of collector interest only; leucite's primary significance is volcanological and petrological.