| Name: | Howlite How |
| Specimens in Collection: |  #1531: Howlite Tick Canyon, California, USA |
| IMA Chemistry: | Ca2SiB5O9(OH)5 |
| Chemistry Elements: | The mineral Howlite contains elements: Calcium (Ca) Silicon (Si) Boron (B) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Canada |
| Year First Published: | 1868 |
| IMA Status: | Approved,Grandfathered |
| Status Notes: | Dana J D, Brush G J (1868) 601. Howlite, in A System of Mineralogy, Fifth Edition, John Wiley and Sons (New York) 598-598 |
| Structural Group Name: | |
| Fleischer's Group Name: | |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 359 Million Years Ago |
| Mohs Hardness: | 3.5 |
| Diaphaneity: | 2.0 |
| Specific Gravity: | 2.56 |
| More Info: | Search Wikipedia: Howlite (Wiki) Search Mindat: Howlite Search Web Mineral DB: Howlite |