History and Discovery
- Howlite was discovered in 1868 by Henry How, a Canadian chemist, geologist, and mineralogist.
- It was initially named silico-boro-calcite by How and later renamed howlite by James Dwight Dana.
- The discovery of howlite occurred near Windsor, Nova Scotia.
- Miners in a gypsum quarry alerted How to the unknown mineral.
- Howlite was considered a nuisance by the miners.
- Howlite commonly occurs as irregular nodules, resembling cauliflower.
- Crystals of howlite are rare and have only been found in a few locations worldwide.
- Tick Canyon in the Sierra Pelona Mountains of California was the first locality where crystals were reported.
- Another locality where crystals were found is Iona, Nova Scotia.
- Howlite nodules are white with fine grey or black veins in a web-like pattern.
- Howlite is frequently used to make decorative objects and jewelry components.
- Due to its porous texture, howlite can be easily dyed to imitate other minerals, particularly turquoise.
- It is also sold in its natural state and sometimes referred to as white turquoise or white buffalo turquoise.
- Howlite is popular for producing jewelry similar to turquoise because it is more durable than the white forms of turquoise.
- Varieties of white turquoise require stabilization for use in jewelry.
- Howlite specimens collected from southern California.
- Polished mass of howlite showing veining.
- Crystals of howlite from Iona, Nova Scotia.
- Crystals of howlite from Tick Canyon, California.
- Howlite artificially colored in blue, marketed as turquenite.
- List of minerals
- List of minerals named after people
- Borate minerals
- Howlite mineral information and data
- Howlite at Mineral Galleries
Howlite Data Sources