Hurlbutite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Hurlbutite |
|---|---|---|
| 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 Hurlbutite
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About Hurlbutite
Hurlbutite is a rare calcium beryllium phosphate mineral, typically forming colorless to white prismatic orthorhombic crystals with a vitreous to pearly luster in granite pegmatites. It was first described from the Palermo No. 1 pegmatite in New Hampshire, USA, in 1953 and named in honor of mineralogist Cornelius S. Hurlbut Jr. Gem-quality transparent material is extremely rare, and faceted hurlbutite is a significant rarity among beryllium phosphate collector minerals.